sample of bibliography in research example

How to Write a Bibliography for a Research Paper

Do not try to “wow” your instructor with a long bibliography when your instructor requests only a works cited page. It is tempting, after doing a lot of work to research a paper, to try to include summaries on each source as you write your paper so that your instructor appreciates how much work you did. That is a trap you want to avoid. MLA style, the one that is most commonly followed in high schools and university writing courses, dictates that you include only the works you actually cited in your paper—not all those that you used.

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• If your assignment calls for a bibliography, list all the sources you consulted in your research.
• If your assignment calls for a works cited or references page, include only the sources you quote, summarize, paraphrase, or mention in your paper.
• If your works cited page includes a source that you did not cite in your paper, delete it.
• All in-text citations that you used at the end of quotations, summaries, and paraphrases to credit others for their ideas,words, and work must be accompanied by a cited reference in the bibliography or works cited. These references must include specific information about the source so that your readers can identify precisely where the information came from.The citation entries on a works cited page typically include the author’s name, the name of the article, the name of the publication, the name of the publisher (for books), where it was published (for books), and when it was published.

The good news is that you do not have to memorize all the many ways the works cited entries should be written. Numerous helpful style guides are available to show you the information that should be included, in what order it should appear, and how to format it. The format often differs according to the style guide you are using. The Modern Language Association (MLA) follows a particular style that is a bit different from APA (American Psychological Association) style, and both are somewhat different from the Chicago Manual of Style (CMS). Always ask your teacher which style you should use.

A bibliography usually appears at the end of a paper on its own separate page. All bibliography entries—books, periodicals, Web sites, and nontext sources such radio broadcasts—are listed together in alphabetical order. Books and articles are alphabetized by the author’s last name.

Most teachers suggest that you follow a standard style for listing different types of sources. If your teacher asks you to use a different form, however, follow his or her instructions. Take pride in your bibliography. It represents some of the most important work you’ve done for your research paper—and using proper form shows that you are a serious and careful researcher.

Bibliography Entry for a Book

A bibliography entry for a book begins with the author’s name, which is written in this order: last name, comma, first name, period. After the author’s name comes the title of the book. If you are handwriting your bibliography, underline each title. If you are working on a computer, put the book title in italicized type. Be sure to capitalize the words in the title correctly, exactly as they are written in the book itself. Following the title is the city where the book was published, followed by a colon, the name of the publisher, a comma, the date published, and a period. Here is an example:

Format : Author’s last name, first name. Book Title. Place of publication: publisher, date of publication.

• A book with one author : Hartz, Paula.  Abortion: A Doctor’s Perspective, a Woman’s Dilemma . New York: Donald I. Fine, Inc., 1992.
• A book with two or more authors : Landis, Jean M. and Rita J. Simon.  Intelligence: Nature or Nurture?  New York: HarperCollins, 1998.

Bibliography Entry for a Periodical

A bibliography entry for a periodical differs slightly in form from a bibliography entry for a book. For a magazine article, start with the author’s last name first, followed by a comma, then the first name and a period. Next, write the title of the article in quotation marks, and include a period (or other closing punctuation) inside the closing quotation mark. The title of the magazine is next, underlined or in italic type, depending on whether you are handwriting or using a computer, followed by a period. The date and year, followed by a colon and the pages on which the article appeared, come last. Here is an example:

Format:  Author’s last name, first name. “Title of the Article.” Magazine. Month and year of publication: page numbers.

• Article in a monthly magazine : Crowley, J.E.,T.E. Levitan and R.P. Quinn.“Seven Deadly Half-Truths About Women.”  Psychology Today  March 1978: 94–106.
• Article in a weekly magazine : Schwartz, Felice N.“Management,Women, and the New Facts of Life.”  Newsweek  20 July 2006: 21–22.
• Signed newspaper article : Ferraro, Susan. “In-law and Order: Finding Relative Calm.”  The Daily News  30 June 1998: 73.
• Unsigned newspaper article : “Beanie Babies May Be a Rotten Nest Egg.”  Chicago Tribune  21 June 2004: 12.

Bibliography Entry for a Web Site

For sources such as Web sites include the information a reader needs to find the source or to know where and when you found it. Always begin with the last name of the author, broadcaster, person you interviewed, and so on. Here is an example of a bibliography for a Web site:

Format : Author.“Document Title.” Publication or Web site title. Date of publication. Date of access.

Example : Dodman, Dr. Nicholas. “Dog-Human Communication.”  Pet Place . 10 November 2006.  23 January 2014 < http://www.petplace.com/dogs/dog-human-communication-2/page1.aspx >

After completing the bibliography you can breathe a huge sigh of relief and pat yourself on the back. You probably plan to turn in your work in printed or handwritten form, but you also may be making an oral presentation. However you plan to present your paper, do your best to show it in its best light. You’ve put a great deal of work and thought into this assignment, so you want your paper to look and sound its best. You’ve completed your research paper!

Back to  How To Write A Research Paper .

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How To Write a Bibliography (Plus Printable Guide With Examples)

Give credit where credit is due.

Writing a research paper involves a lot of work. Students need to consult a variety of sources to gather reliable information and ensure their points are well supported. Research papers include a bibliography, which can be a little tricky for students. Learn how to write a bibliography in multiple styles and find basic examples below.

Plus grab our printable Bibliography Guide for Students with examples from all three major style guides: APA (American Psychological Association), MLA (Modern Language Association), or The Chicago Manual of Style . Just fill out the form on this page to get the free guide.

IMPORTANT: Each style guide has its own very specific rules, and they often conflict with one another. Additionally, each type of reference material has many possible formats, depending on a variety of factors. The overviews shown here are meant to guide students in writing basic bibliographies, but this information is by no means complete. Students should always refer directly to the preferred style guide to ensure they’re using the most up-to-date formats and styles.

What is a bibliography?

When you’re researching a paper, you’ll likely consult a wide variety of sources. You may quote some of these directly in your work, summarize some of the points they make, or simply use them to further the knowledge you need to write your paper. Since these ideas are not your own, it’s vital to give credit to the authors who originally wrote them. This list of sources, organized alphabetically, is called a bibliography.

A bibliography should include all the materials you consulted in your research, even if you don’t quote directly from them in your paper. These resources could include (but aren’t limited to):

• Books and e-books
• Periodicals like magazines or newspapers
• Online articles or websites
• Primary source documents like letters or official records

Bibliography vs. References

These two terms are sometimes used interchangeably, but they actually have different meanings. As noted above, a bibliography includes all the materials you used while researching your paper, whether or not you quote from them or refer to them directly in your writing.

A list of references only includes the materials you cite throughout your work. You might use direct quotes or summarize the information for the reader. Either way, you must ensure you give credit to the original author or document. This section can be titled “List of Works Cited” or simply “References.”

Your teacher may specify whether you should include a bibliography or a reference list. If they don’t, consider choosing a bibliography to show all the works you used in researching your paper. This can help the reader see that your points are well supported and allow them to do further reading on their own if they’re interested.

Bibliography vs. Citations

Citations refer to direct quotations from a text that are woven into your own writing. There are a variety of ways to write citations, including footnotes and endnotes. These are generally shorter than the entries in a reference list or bibliography. Learn more about writing citations here.

What does a bibliography entry include?

Depending on the reference material, bibliography entries include a variety of information intended to help a reader locate the material if they want to refer to it themselves. These entries are listed in alphabetical order and may include: ADVERTISEMENT

• Author/s or creator/s
• Publication date
• Volume and issue numbers
• Publisher and publication city
• Website URL

These entries don’t generally need to include specific page numbers or locations within the work (except for print magazine or journal articles). That type of information is usually only needed in a footnote or endnote citation.

What are the different bibliography styles?

In most cases, writers use one of three major style guides: APA (American Psychological Association), MLA (Modern Language Association), or The Chicago Manual of Style . There are many others as well, but these three are the most common choices for K–12 students.

Many teachers will state their preference for one style guide over another. If they don’t, you can choose your own preferred style. However, you should also use that guide for your entire paper, following their recommendations for punctuation, grammar, and more. This will ensure you are consistent throughout.

Below, you’ll learn how to write a simple bibliography using each of the three major style guides. We’ve included details for books and e-books, periodicals, and electronic sources like websites and videos. If the reference material type you need to include isn’t shown here, refer directly to the style guide you’re using.

APA Style Bibliography and Examples

Technically, APA style calls for a list of references instead of a bibliography. If your teacher requires you to use the APA style guide , you can limit your reference list to only items you cite throughout your work.

How To Write a Bibliography (References) Using APA Style

Here are some general notes on writing an APA reference list:

• Title your bibliography section “References” and center the title on the top line of the page.
• Do not center your references; they should be left-aligned. For longer items, subsequent lines should use a hanging indent of 1/2 inch.
• Include all types of resources in the same list.
• Alphabetize your list by author or creator, last name first.
• Do not spell out the author/creator’s first or middle name—only use their initials.
• If there are multiple authors/creators, use an ampersand (&) before the final author/creator.
• Place the date in parentheses.
• Capitalize only the first word of the title and subtitle, unless the word would otherwise be capitalized (proper names, etc.).
• Italicize the titles of books, periodicals, and videos.
• For websites, include the full site information, including the http:// or https:// at the beginning.

Books and E-Books APA Bibliography Examples

For books, APA reference list entries use this format (only include the publisher’s website for e-books):

Last Name, First Initial. Middle Initial. (Publication date). Title with only first word capitalized (unless there’s a proper name/noun) . Publisher. Publisher’s website

• Wynn, S. (2020). City of London at war 1939–45 . Pen & Sword Military. https://www.pen-and-sword.co.uk/City-of-London-at-War-193945-Paperback/p/17299

Periodical APA Bibliography Examples

For journal or magazine articles, use the following format. If you viewed the article online, include the URL at the end of the citation.

Last Name, First Initial. Middle Initial. (Publication date). Title of article. Magazine or Journal Title (Volume number) Issue number, page numbers. URL

• Bell, A. (2009). Landscapes of fear: Wartime London, 1939–1945. Journal of British Studies (48) 1, 153–175. https://www.jstor.org/stable/25482966

Here’s the format for newspapers. For print editions, include the page number/s. For online articles, include the full URL:

Last Name, First Initial. Middle Initial. (Year, Month Date) Title of article. Newspaper title. Page number/s. URL

• Blakemore, E. (2022, November 12) Researchers track down two copies of fossil destroyed by the Nazis.  The Washington Post. https://www.washingtonpost.com/science/2022/11/12/ichthyosaur-fossil-images-discovered/

Electronic APA Bibliography Examples

For articles with a specific author on a website, use this format:

Last Name, First Initial. Middle Initial. (Year, Month Date). Title . Site name. URL

• Wukovits, J. (2023, January 30). A World War II survivor recalls the London Blitz . British Heritage . https://britishheritage.com/history/world-war-ii-survivor-london-blitz

When an online article doesn’t include a specific author or date, list it like this:

Title . (Year, Month Date). Site name. Retrieved Month Date, Year, from URL

• Growing up in the Second World War . (n.d.). Imperial War Museums. Retrieved May 12, 2023, from https://www.iwm.org.uk/history/growing-up-in-the-second-world-war

When you need to list a YouTube video, use the name of the account that uploaded the video, and format it like this:

Name of Account. (Upload year, month day). Title [Video]. YouTube. URL

• War Stories. (2023, January 15). How did London survive the Blitz during WW2? Cities at war: London [Video]. YouTube. https://youtu.be/uwY6JlCvbxc

For more information on writing APA bibliographies, see the APA Style Guide website.

APA Bibliography (Reference List) Example Pages

MLA Style Bibliography Examples

MLA style calls for a Works Cited section, which includes all materials quoted or referred to in your paper. You may also include a Works Consulted section, including other reference sources you reviewed but didn’t directly cite. Together, these constitute a bibliography. If your teacher requests an MLA Style Guide bibliography, ask if you should include Works Consulted as well as Works Cited.

How To Write a Bibliography (Works Cited and Works Consulted) in MLA Style

For both MLA Works Cited and Works Consulted sections, use these general guidelines:

• Start your Works Cited list on a new page. If you include a Works Consulted list, start that on its own new page after the Works Cited section.
• Center the title (Works Cited or Works Consulted) in the middle of the line at the top of the page.
• Align the start of each source to the left margin, and use a hanging indent (1/2 inch) for the following lines of each source.
• Alphabetize your sources using the first word of the citation, usually the author’s last name.
• Include the author’s full name as listed, last name first.
• Capitalize titles using the standard MLA format.
• Leave off the http:// or https:// at the beginning of a URL.

Books and E-Books MLA Bibliography Examples

For books, MLA reference list entries use the following format. Add the URL at the end for e-books.

Last Name, First Name Middle Name. Title . Publisher, Date. URL

• Wynn, Stephen. City of London at War 1939–45 . Pen & Sword Military, 2020. www.pen-and-sword.co.uk/City-of-London-at-War-193945-Paperback/p/17299

Periodical MLA Bibliography Examples

Here’s the MLA-style format for magazines, journals, and newspapers. For online articles, add the URL at the end of the listing:

For magazines and journals:

Last Name, First Name. “Title: Subtitle.” Name of Journal , volume number, issue number, Date of Publication, First Page Number–Last Page Number.

• Bell, Amy. “Landscapes of Fear: Wartime London, 1939–1945.” Journal of British Studies , vol. 48, no. 1, January 2009, pp. 153–175. www.jstor.org/stable/25482966

When citing newspapers, include the page number/s for print editions or the URL for online articles:

Last Name, First Name. “Title of article.” Newspaper title. Page number/s. Year, month day. Page number or URL

• Blakemore, Erin. “Researchers Track Down Two Copies of Fossil Destroyed by the Nazis.” The Washington Post. 2022, Nov. 12. www.washingtonpost.com/science/2022/11/12/ichthyosaur-fossil-images-discovered/

Electronic MLA Bibliography Examples

Last Name, First Name. Year. “Title.” Month Day, Year published. URL

• Wukovits, John. 2023. “A World War II Survivor Recalls the London Blitz.” January 30,   2023. https://britishheritage.com/history/world-war-ii-survivor-london-blitz

Website. n.d. “Title.” Accessed Day Month Year. URL.

• Imperial War Museum. n.d. “Growing Up in the Second World War.” Accessed May 9, 2023. www.iwm.org.uk/history/growing-up-in-the-second-world-war.

Here’s how to list YouTube and other online videos:

Creator, if available. “Title of Video.” Website. Uploaded by Username, Day Month Year. URL.

• “How did London survive the Blitz during WW2?” Cities at war: London | War stories.” YouTube . Uploaded by War Stories, 15 Jan. 2023. youtu.be/uwY6JlCvbxc.

For more information on writing MLA-style bibliographies, see the MLA Style website.

MLA Bibliography (Works Cited) Example Pages

Chicago Manual of Style Bibliography Examples

The Chicago Manual of Style (sometimes called “Turabian”) actually has two options for citing reference material: Notes and Bibliography and Author-Date. Regardless of which you use, you’ll need a complete detailed list of reference items at the end of your paper. The examples below demonstrate how to write that list.

How To Write a Bibliography Using The Chicago Manual of Style

Here are some general notes on writing a Chicago -style bibliography:

• You may title it “Bibliography” or “References.” Center this title at the top of the page and add two blank lines before the first entry.
• Left-align each entry, with a hanging half-inch indent for subsequent lines of each entry.
• Single-space each entry, with a blank line between entries.
• Include the “http://” or “https://” at the beginning of URLs.

Books and E-Books Chicago Manual of Style Bibliography Examples

For books, Chicago -style reference list entries use the following format. (For print books, leave off the information about how the book was accessed.)

Last Name, First Name Middle Name. Title . City of Publication: Publisher, Date. How e-book was accessed.

• Wynn, Stephen. City of London at War 1939–45 . Yorkshire: Pen & Sword Military, 2020. Kindle edition.

Periodical Chicago Manual of Style Bibliography Examples

Here’s the style format for magazines, journals, and newspapers. For online articles, add the URL at the end of the listing.

For journal and magazine articles, use this format:

Last Name, First Name. Year of Publication. “Title: Subtitle.” Name of Journal , Volume Number, issue number, First Page Number–Last Page Number. URL.

• Bell, Amy. 2009. “Landscapes of Fear: Wartime London, 1939–1945.” Journal of British Studies, 48 no. 1, 153–175. https://www.jstor.org/stable/25482966.

When citing newspapers, include the URL for online articles:

Last Name, First Name. Year of Publication. “Title: Subtitle.” Name of Newspaper , Month day, year. URL.

• Blakemore, Erin. 2022. “Researchers Track Down Two Copies of Fossil Destroyed by the Nazis.” The Washington Post , November 12, 2022. https://www.washingtonpost.com/science/2022/11/12/ichthyosaur-fossil-images-discovered/.

Electronic Chicago Manual of Style Bibliography Examples

Last Name, First Name Middle Name. “Title.” Site Name . Year, Month Day. URL.

• Wukovits, John. “A World War II Survivor Recalls the London Blitz.” British Heritage. 2023, Jan. 30. britishheritage.com/history/world-war-ii-survivor-london-blitz.

“Title.” Site Name . URL. Accessed Month Day, Year.

• “Growing Up in the Second World War.” Imperial War Museums . www.iwm.org.uk/history/growing-up-in-the-second-world-war. Accessed May 9, 2023.

Creator or Username. “Title of Video.” Website video, length. Month Day, Year. URL.

• War Stories. “How Did London Survive the Blitz During WW2? | Cities at War: London | War Stories.” YouTube video, 51:25. January 15, 2023. https://youtu.be/uwY6JlCvbxc.

For more information on writing Chicago -style bibliographies, see the Chicago Manual of Style website.

Chicago Manual of Style Bibliography Example Pages

Get Your Free Printable Bibliography Style Guide

Just fill out the form on this page to grab our printable Bibliography Guide for Students with examples from all three major style guides: APA (American Psychological Association), MLA (Modern Language Association), or The Chicago Manual of Style .

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How to Write a Bibliography (MLA, APA Examples)

Learn how to easily write a bibliography by following the format outlined in this article.

This resource will help your students properly cite different resources in the bibliography of a research paper, and how to format those citations, for books, encyclopedias, films, websites, and people.

What is a bibliography?

According to Infoplease.com, A bibliography is a list of the types of sources you used to get information for your report. It is included at the end of your report, on the last page (or last few pages).

What are the types of bibliography styles (MLA, APA, etc.)?

The 3 most common bibliography/citation styles are:

• MLA Style: The Modern Language Association works cited page style
• APA Style: The American Psychological Association style
• Chicago Style: The bibliography style defined by the Chicago Manual of Style

We’ll give examples of how to create bibliography entries in various styles further down in this article. 

What sources do you put in a bibliography?

An annotated bibliography should include a reference list of any sources you use in writing a research paper. Any printed sources from which you use a text citation, including books, websites, newspaper articles, journal articles, academic writing, online sources (such as PDFs), and magazines should be included in a reference list. In some cases, you may need or want to cite conversations or interviews, works of art, visual works such as movies, television shows, or documentaries - these (and many others) can also be included in a reference list.

How to get started writing your bibliography

You will find it easier to prepare your MLA, APA, or Chicago annotated bibliography if you keep track of each book, encyclopedia, journal article, webpage or online source you use as you are reading and taking notes. Start a preliminary, or draft, bibliography by listing on a separate sheet of paper all your sources. Note down the full title, author’s last name, place of publication, web address, publisher, and date of publication for each source.

Haven't started your paper yet and need an outline? These sample essay outlines include a research paper outline from an actual student paper.

How to write a bibliography step-by-step (with examples)

General Format: Author (last name first). Title of the book. Publisher, Date of publication.

MLA Style: Sibley, David Allen. What It’s Like to Be a Bird. From Flying to Nesting, Eating to Singing, What Birds Are Doing, and Why. Alfred A. Knopf, 2020.

APA Style: Sibley, D.A. (2020). What It’s Like to Be a Bird. From Flying to Nesting, Eating to Singing, What Birds Are Doing, and Why . Alfred A. Knopf.

Notes: Use periods, not commas, to separate the data in the entry. Use a hanging indent if the entry is longer than one line. For APA style, do not use the full author’s first name.

Websites or webpages:

  MLA Style: The SB Nation Family of Sites. Pension Plan Puppets: A Toronto Maple Leafs Blog, 2022, www.pensionplanpuppets.com. Accessed 15 Feb. 2022.

APA Style: American Heart Association. (2022, April 11). How to keep your dog’s heart healthy. https://www.heart.org/en/news/2022/04/11/how-to-keep-your-dogs-heart-healthy

Online news article from a newspaper site:

APA Style: Duehren, A. (2022, April 9). Janet Yellen faces challenge to keep pressure on Russia. Wall Street Journal. https://www.wsj.com/articles/janet-yellen-faces-challenge-to-keep-pressure-on-russia-while-addressing-global-consequences-11650366000

Print journal articles:

MLA Style: Booch, Grady. "Patterns in Object-Oriented Design." IEEE Software Engineering, vol. 6, no. 6, 2006, pp. 31-50.

APA Style: Booch, G. (2006). Patterns in object-oriented design. IEEE Software Engineering, 6(6), 31–50.

Note: It is suggested that you include a DOI and a webpage address when referencing either a printed journal article, and electronic journal article, or an journal article that appears in both formats. 

MLA Style: Gamma, Eric, and Peter A. Coad. “Exceptions to the Unified Modeling Language in Python Patterns.” IEEE Software Engineering, vol. 2, no. 6, 8 Mar. 2006, pp. 190-194. O’Reilly Software Engineering Library, https://doi.org/10.1006/se.20061. Accessed 26 May 2009.

APA Style: Masters, H., Barron, J., & Chanda, L. (2017). Motivational interviewing techniques for adolescent populations in substance abuse counseling. NAADAC Notes, 7(8), 7–13. https://www.naadac.com/notes/adolescent-techniques

ML:A Style: @Grady_Booch. “That’s a bold leap over plain old battery power cars.” Twitter, 13 Mar. 2013, 12:06 p.m., https://twitter.com/Grady_Booch/status/1516379006727188483.

APA Style: Westborough Library [@WestboroughLib]. (2022, April 12). Calling all 3rd through 5th grade kids! Join us for the Epic Writing Showdown! Winner receives a prize! Space is limited so register, today. loom.ly/ypaTG9Q [Tweet; thumbnail link to article]. Twitter. https://twitter.com/WestboroughLib/status/1516373550415896588.

Print magazine articles:

General format: Author (last name first), "Article Title." Name of magazine. Volume number, (Date): page numbers.

MLA Style: Stiteler, Sharon. "Tracking Red-Breasted Grosbeak Migration." Minnesota Bird Journal, 7 Sept. 2019, pp. 7-11.

APA Style: Jordan, Jennifer, "Filming at the Top of the World." Museum of Science Magazine. Volume 47, No. 1, (Winter 1998): p. 11.

Print newspaper articles:

General format: Author (last name first), "Article Title." Name of newspaper, city, state of publication. (date): edition if available, section, page number(s).

MLA Style: Adelman, Martin. "Augustus Announces Departure from City Manager Post." New York Times, late ed., 15 February 2020, p. A1

APA Style: Adelman, M. (2020, February 15). Augustus announced departure from city manager post. New York Times, A1.

Encyclopedias:

General Format: Encyclopedia Title, Edition Date. Volume Number, "Article Title," page numbers.

MLA Style: “Gorillas.” The Encyclopedia Brittanica. 15th ed. 2010.

APA Style: Encyclopedia Brittanica, Inc. (1997.) Gorillas. In The Encyclopedia Brittanica (15th ed., pp. 50-51). Encyclopedia Brittanica, Inc.

Personal interviews:

General format: Full name (last name first). Personal Interview. (Occupation.) Date of interview.

MLA Style: Smithfield, Joseph. Personal interview. 19 May 2014.

APA Style: APA does not require a formal citation for a personal interview. Published interviews from other sources should be cited accordingly.

Films and movies:

General format: Title, Director, Distributor, Year.

MLA Style: Fury. Directed by David Ayer, performances by Brad Pitt, Shia LaBeouf, Jon Bernthal, Sony Pictures, 2014.

APA Style: Ayer, D. (Director). (2014). Fury [Film]. Sony Pictures.

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How to Write a Bibliography in APA Format

• APA Bibliography
• How to Create One
• Why You Need It

Sample Bibliography

An APA format bibliography lists all of the sources that might be used in a paper. A bibliography can be a great tool to help you keep track of information during the research and writing process. In some cases, your instructor may require you to include a bibliography as part of your assignment.

At a Glance

A well-written APA format bibliography can help you keep track of information and sources as you research and write your psychology paper. To create a bibliography, gather up all of the sources that you might use in your paper. Create an APA format reference for each source and then write a brief annotation. Your annotation should be a brief summary of what each reference is about. You can quickly refer to these annotations When writing your paper and determine which to include.

What Is an APA Format Bibliography?

An APA format bibliography is an alphabetical listing of all sources that might be used to write an academic paper, essay, article, or research paper—particularly work that is covering psychology or psychology-related topics. APA format is the official style of the American Psychological Association (APA). This format is used by many psychology professors, students, and researchers.

Even if it is not a required part of your assignment, writing a bibliography can help you keep track of your sources and make it much easier to create your final reference page in proper APA format.

Creating an APA Bibliography

A bibliography is similar in many ways to a reference section , but there are some important differences. While a reference section includes every source that was actually used in your paper, a bibliography may include sources that you considered using but may have dismissed because they were irrelevant or outdated.

Bibliographies can be a great way to keep track of information you might want to use in your paper and to organize the information that you find in different sources. The following are four steps you can follow to create your APA format bibliography.

Start on a New Page

Your working bibliography should be kept separate from the rest of your paper. Start it on a new page, with the title "Bibliography" centered at the top and in bold text. Some people use the title "References" instead, so it's best to check with your professor or instructor about which they prefer you to use.

Gather Your Sources

Compile all the sources you might possibly use in your paper. While you might not use all of these sources in your paper, having a complete list will make it easier later on when you prepare your reference section.

Gathering your sources can be particularly helpful when outlining and writing your paper.

By quickly glancing through your working bibliography, you will be able to get a better idea of which sources will be the most appropriate to support your thesis and main points.

Reference Each Source

Your references should be listed alphabetically by the author’s last name, and they should be double-spaced. The first line of each reference should be flush left, while each additional line of a single reference should be a few spaces to the right of the left margin, which is known as a hanging indent.

The format of each source is as follows for academic journals:

• Last name of first author (followed by their first initial)
• The year the source was published in parentheses
• The title of the source
• The journal that published the source (in italics)
• The volume number, if applicable (in italics)
• The issue number, if applicable
• Page numbers (in parentheses)
• The URL or "doi" in lowercase letters followed by a colon and the doi number, if applicable

The following examples are scholarly articles in academic journals, cited in APA format:

• Kulacaoglu, F., & Kose, S. (2018). Borderline personality disorder (BPD): In the midst of vulnerability, chaos, and awe.  Brain sciences ,  8 (11), 201. doi:10.3390/brainsci8110201
• Cattane, N., Rossi, R., & Lanfredi, M. (2017). Borderline personality disorder and childhood trauma: exploring the affected biological systems and mechanisms.  BMC Psychiatry,   18 (221). doi:10.1186/s12888-017-1383-2

Visit the American Psychological Association's website for more information on citing other types of sources including online media, audiovisual media, and more.

Create an Annotation for Each Source

Normally a bibliography contains only references' information, but in some cases you might decide to create an annotated bibliography. An annotation is a summary or evaluation of the source.

An annotation is a brief description of approximately 150 words describing the information in the source, your evaluation of its credibility, and how it pertains to your topic. Writing one of these for each piece of research will make your writing process faster and easier.

This step helpful in determining which sources to ultimately use in your paper. Your instructor may also require it as part of the assignment so they can assess your thought process and understanding of your topic.

Reasons to Write a Bibliography

One of the biggest reasons to create an APA format bibliography is simply to make the research and writing process easier.

If you do not have a comprehensive list of all of your references, you might find yourself scrambling to figure out where you found certain bits of information that you included in your paper.

A bibliography is also an important tool that your readers can use to access your sources.

While writing an annotated bibliography might not be required for your assignment, it can be a very useful step. The process of writing an annotation helps you learn more about your topic, develop a deeper understanding of the subject, and become better at evaluating various sources of information.

The following is an example of an APA format bibliography by the website EasyBib:

There are many online resources that demonstrate different formats of bibliographies, including the American Psychological Association website . Purdue University's Online Writing Lab also has examples of formatting an APA format bibliography.

Check out this video on their YouTube channel which provides detailed instructions on formatting an APA style bibliography in Microsoft Word.

You can check out the Purdue site for more information on writing an annotated APA bibliography as well.

What This Means For You

If you are taking a psychology class, you may be asked to create a bibliography as part of the research paper writing process. Even if your instructor does not expressly require a bibliography, creating one can be a helpful way to help structure your research and make the writing process more manageable.

For psychology majors , it can be helpful to save any bibliographies you have written throughout your studies so that you can refer back to them later when studying for exams or writing papers for other psychology courses.

American Psychological Association. Publication Manual of the American Psychological Association . 7th Edition. Washington, DC: American Psychological Association; 2020.

Masic I. The importance of proper citation of references in biomedical articles.   Acta Inform Med . 2013;21(3):148–155. doi:10.5455/aim.2013.21.148-155

American Psychological Association. How do you format a bibliography in APA Style?

Cornell University Library. How to prepare an annotated bibliography: The annotated bibliography .

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

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• Harvard Style Bibliography | Format & Examples

Harvard Style Bibliography | Format & Examples

Published on 1 May 2020 by Jack Caulfield . Revised on 7 November 2022.

In Harvard style , the bibliography or reference list provides full references for the sources you used in your writing.

• A reference list consists of entries corresponding to your in-text citations .
• A bibliography sometimes also lists sources that you consulted for background research, but did not cite in your text.

The two terms are sometimes used interchangeably. If in doubt about which to include, check with your instructor or department.

The information you include in a reference varies depending on the type of source, but it usually includes the author, date, and title of the work, followed by details of where it was published. You can automatically generate accurate references using our free reference generator:

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Table of contents

Formatting a harvard style bibliography, harvard reference examples, referencing sources with multiple authors, referencing sources with missing information, frequently asked questions about harvard bibliographies.

Sources are alphabetised by author last name. The heading ‘Reference list’ or ‘Bibliography’ appears at the top.

Each new source appears on a new line, and when an entry for a single source extends onto a second line, a hanging indent is used:

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Reference list or bibliography entries always start with the author’s last name and initial, the publication date and the title of the source. The other information required varies depending on the source type. Formats and examples for the most common source types are given below.

• Entire book
• Book chapter
• Translated book
• Edition of a book

Journal articles

• Print journal
• Online-only journal with DOI
• Online-only journal without DOI

• General web page
• Online article or blog
• Social media post

Newspapers and magazines

• Newspaper article
• Magazine article

When a source has up to three authors, list all of them in the order their names appear on the source. If there are four or more, give only the first name followed by ‘ et al. ’:

Sometimes a source won’t list all the information you need for your reference. Here’s what to do when you don’t know the publication date or author of a source.

Some online sources, as well as historical documents, may lack a clear publication date. In these cases, you can replace the date in the reference list entry with the words ‘no date’. With online sources, you still include an access date at the end:

When a source doesn’t list an author, you can often list a corporate source as an author instead, as with ‘Scribbr’ in the above example. When that’s not possible, begin the entry with the title instead of the author:

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Though the terms are sometimes used interchangeably, there is a difference in meaning:

• A reference list only includes sources cited in the text – every entry corresponds to an in-text citation .
• A bibliography also includes other sources which were consulted during the research but not cited.

In Harvard referencing, up to three author names are included in an in-text citation or reference list entry. When there are four or more authors, include only the first, followed by ‘ et al. ’

In Harvard style referencing , to distinguish between two sources by the same author that were published in the same year, you add a different letter after the year for each source:

• (Smith, 2019a)
• (Smith, 2019b)

Add ‘a’ to the first one you cite, ‘b’ to the second, and so on. Do the same in your bibliography or reference list .

To create a hanging indent for your bibliography or reference list :

• Highlight all the entries
• Click on the arrow in the bottom-right corner of the ‘Paragraph’ tab in the top menu.
• In the pop-up window, under ‘Special’ in the ‘Indentation’ section, use the drop-down menu to select ‘Hanging’.
• Then close the window with ‘OK’.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

Caulfield, J. (2022, November 07). Harvard Style Bibliography | Format & Examples. Scribbr. Retrieved 29 August 2024, from https://www.scribbr.co.uk/referencing/harvard-bibliography/

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Citation Examples | Books, Articles, Websites & More

Published on April 9, 2021 by Jack Caulfield . Revised on January 17, 2024.

The most common citation styles are APA and MLA . To cite a source in these styles, you need a brief in-text citation and a full reference.

Use the interactive tool to understand how a citation is structured and see examples for common source types .

As well as switching between styles and sources, you can explore how a citation looks when there are multiple authors, different editions, no publication date, and other common scenarios.

If you’re still not sure how to cite your source correctly, dive into our comprehensive articles. For each source type, we provide a range of examples in APA , MLA , and Chicago style .

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Caulfield, J. (2024, January 17). Citation Examples | Books, Articles, Websites & More. Scribbr. Retrieved August 29, 2024, from https://www.scribbr.com/citing-sources/citation-example/

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Citation Styles: A Brief Guide to APA, MLA and Turabian

Sample bibliography: apa.

• Journal Articles
• Magazine Articles
• Newspaper Articles
• Government Publications
• Other Materials
• In Text Citations
• Sample Bibliography: MLA
• Sample Bibliography: Turabian
• Creating an Annotated Bibliography This link opens in a new window

The basic format for a book citation requires listing the author's name, the title of the book, the publisher's name, and the date of publication. Edited books, when cited in full, will list the editor's name instead of an author’s name. 

Becsey, L., Wachsberger, P., Samuels, S., et al (Directors). (2008). In the valley of Elah . [DVD]. Warner Home Video.

Ginsberg, J. P., Ayers, E., Burriss, L., & Powell, D. A. (2008). Discriminative delay Pavlovian eye-blink conditioning in veterans with and without post-traumatic stress disorder. Journal of Anxiety Disorders , 22 , 809-823. https://doi:10.1016/j.janxdis.2007.08.009

Glantz, A. (2009). The war comes home: Washington's battle against America's veterans . University of California Press.

Jakupcak, M., Luterek, J., Hunt, S., Conybeare, D., & McFall, M. (2008). Post-traumatic stress and its relationship to physical health functioning in a sample of Iraq and Afghanistan war veterans seeking post-deployment VA health care. Journal of Nervous and Mental Disease , 196 , 425-428.

Jensen, G. & Wiest, A. A. (2001). War in the age of technology myriad faces of modern armed conflict . New York University Press.

Killgore, W. D. S., Cotting, D. I., Thomas, J. L., Cox, A. L., McGurk, D., Vo, A. H., et al. (2008). Post-combat invincibility: Violent combat experiences are associated with increased risk-taking propensity following deployment. Journal of Psychiatric Research , 42 (13), 1112-1121. https://doi:10.1016/j.jpsychires.2008.01.001

Monson, C. M., Fredman, S. J., & Adair, K. C. (2008). Cognitive-behavioral conjoint therapy for post-traumatic stress disorder: Application to operation enduring and Iraqi freedom veterans. Journal of Clinical Psychology , 64 , 958-971. https://doi:10.1002/jclp.20511

Paulson, D. S., & Krippner, S. (2007). Haunted by combat : Understanding PTSD in war veterans including women, reservists, and those coming back from Iraq . Praeger Security International.

Tanielian, T. L., Jaycox, L., & Rand Corporation. (2008). Invisible wounds of war: Psychological and cognitive injuries, their consequences, and services to assist recovery . Rand.

United States. Congress. House Committee on Foreign Affairs. Subcommittee on the Middle East and South Asia. (2007). Working in a war zone: Post traumatic stress disorder in civilians returning from Iraq . G.P.O.

Van Winkle, C. (2009). Soft spots: A marine's memoir of combat and post-traumatic stress disorder . St. Martin's Press.

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APA Citation Style

Citation examples.

• Paper Format
• Style and Grammar Guidelines
• Citation Management Tools
• What's New in the 7th Edition?
• APA Style References Guidelines from the American Psychological Association
• APA Style (OWL - Online Writing Lab, Purdue University)
• Common Reference Examples Handout
• Journal Article
• Magazine Article
• Newspaper Article
• Edited Book Chapter
• Dictionary Entry
• Government Report
• YouTube Video
• Facebook Post
• Webpage on a Website
• Supplemental Reference Examples
• Archival Documents and Collections

Parenthetical citations:  (Grady et al., 2019; Jerrentrup et al., 2018)

Narrative citations:  Grady et al. (2019) and Jerrentrup et al. (2018)

• If a journal article has a DOI, include the DOI in the reference.
• If the journal article does not have a DOI and is from an academic research database, end the reference after the page range (for an explanation of why, see the  database information  page). The reference in this case is the same as for a print journal article.
• Do not include database information in the reference unless the journal article comes from a database that publishes original, proprietary content, such as UpToDate (see an example on the  database information  page).
• If the journal article does not have a DOI but does have a URL that will resolve for readers (e.g., it is from an online journal that is not part of a database), include the URL of the article at the end of the reference.
• If the journal article has an article number instead of a page range, include the article number instead of the page range (as shown in the Jerrentrup et al. example).

Parenthetical citations:  (Rabinowitz, 2019; Sapolsky, 2017)

Narrative citations:  Rabinowitz (2019) and Sapolsky (2017)

• If the book includes a DOI, include the DOI in the reference after the publisher name.
• Do not include the publisher location.
• If the book does not have a DOI and comes from an academic research database, end the book reference after the publisher name. Do not include  database information  in the reference. The reference in this case is the same as for a print book.

Parenthetical citations:  (Schaefer & Shapiro, 2019; Schulman, 2019)

Narrative citations:  Schaefer and Shapiro (2019) and Schulman (2019)

• If a magazine article has a DOI, include the DOI in the reference.
• If the magazine article does not have a DOI and is from an academic research database, end the reference after the page range. Do not include  database information  in the reference. The reference in this case is the same as for a print magazine article.
• If the magazine article does not have a DOI but does have a URL that will resolve for readers (e.g., it is from an online magazine that is not part of a database), include the URL of the article at the end of the reference.
• If the magazine article does not have volume, issue, and/or page numbers (e.g., because it is from an online magazine), omit the missing elements from the reference (as in the Schulman example).

Parenthetical citation:  (Carey, 2019)

Narrative citation:  Carey (2019)

• If the newspaper article is from an academic research database, end the reference after the page range. Do not include  database information  in the reference. The reference in this case is the same as for a print newspaper article.
• If the newspaper article has a URL that will resolve for readers (e.g., it is from an online newspaper), include the URL of the article at the end of the reference.
• If the newspaper article does not have volume, issue, and/or page numbers (e.g., because it is from an online newspaper), omit the missing elements from the reference, as shown in the example.
• If the article is from a news website (e.g., CNN, HuffPost)—one that does not have an associated daily or weekly newspaper—use the format for a  webpage on a website  instead.

Parenthetical citation:  (Aron et al., 2019)

Narrative citation:  Aron et al. (2019)

• If the edited book chapter includes a DOI, include the chapter DOI in the reference after the publisher name.
• If the edited book chapter does not have a DOI and comes from an academic research database, end the edited book chapter reference after the publisher name. Do not include  database information  in the reference. The reference in this case is the same as for a print edited book chapter.
• Do not create references for chapters of authored books. Instead, write a reference for the whole book and cite the chapter in the text if desired (e.g., Kumar, 2017, Chapter 2).

Parenthetical citation:  (Merriam-Webster, n.d.)

Narrative citation:  Merriam-Webster (n.d.)

• Because entries in  Merriam-Webster’s Dictionary  are updated over time and are not archived, include a  retrieval date  in the reference.
• Merriam-Webster is both the author and the publisher, so the name appears in the author element only to avoid repetition.
• To quote a dictionary definition, view the pages on quotations and  how to quote works without page numbers  for guidance. Additionally, here is an example:  Culture  refers to the “customary beliefs, social forms, and material traits of a racial, religious, or social group” (Merriam-Webster, n.d., Definition 1a).

Parenthetical citation:  (National Cancer Institute, 2019)

Narrative citation:  National Cancer Institute (2019)

The specific agency responsible for the report appears as the author. The names of parent agencies not present in the  group author name  appear in the source element as the publisher. This creates concise in-text citations and complete reference list entries.

Parenthetical citation:  (Harvard University, 2019)

Narrative citation:  Harvard University (2019)

• Use the name of the account that uploaded the video as the author.
• If the account did not actually create the work, explain this in the text if it is important for readers to know. However, if that would mean citing a source that appears unauthoritative, you might also look for the author’s YouTube channel, official website, or other social media to see whether the same video is available elsewhere.

Parenthetical citations:  (APA Databases, 2019; Gates, 2019)

Narrative citations:  APA Databases (2019) and Gates (2019)

• Present the name of the individual or group author the same as you would for any other reference. Then provide the Twitter handle (beginning with the @ sign) in square brackets, followed by a period.
• Provide the first 20 words of the tweet as the title. Count a URL, a hashtag, or an emoji as one word each, and include them in the reference if they fall within the first 20 words.
• If the tweet includes an image, a video, a poll, or a thumbnail image with a link, indicate that in brackets after the title: [Image attached], [Video attached], [Thumbnail with link attached].
• The same format used for Twitter is also used for Instagram.  

Parenthetical citation:  (News From Science, 2019)

Narrative citation:  News From Science (2019)

• Provide the first 20 words of the Facebook post as the title. Count a URL or other link, a hashtag, or an emoji as one word each, and include them in the reference if they fall within the first 20 words. 
• If a status update includes images, videos, thumbnail links to outside sources, or content from another Facebook post (such as when sharing a link), indicate that in square brackets.

Parenthetical citations:  (Fagan, 2019; National Institute of Mental Health, 2018; Woodyatt, 2019; World Health Organization, 2018)

Narrative citations:  Fagan (2019), National Institute of Mental Health (2018), Woodyatt (2019), and World Health Organization (2018)

• Provide as specific a  date  as is available on the webpage. This might be a year only; a year and month; or a year, month, and day.
• Italicize the title of a webpage.
• When the author of the webpage and the publisher of the website are the same, omit the publisher name to avoid repetition (as in the World Health Organization example).
• When contents of a page are meant to be updated over time but are not archived, include a  retrieval date  in the reference (as in the Fagan example).
• Use the webpage on a website format for articles from news websites such as CNN and HuffPost (these sites do not have associated daily or weekly newspapers). Use the  newspaper article category  for articles from newspaper websites such as  The New York Times  or  The Washington Post .
• Create a reference to an open educational resources (OER) page only when the materials are available for download directly (i.e., the materials are on the page and/or can be downloaded as PDFs or other files). If you are directed to another website, create a reference to the specific webpage on that website where the materials can be retrieved. Use this format for material in any OER repository, such as OER Commons, OASIS, or MERLOT.
• Do not create a reference or in-text citation for a whole website. To mention a website in general, and not any particular information on that site, provide the name of the website in the text and include the URL in parentheses. For example, you might mention that you used a website to create a survey.

The following supplemental example references are mention in the  Publication Manual:

• retracted journal or magazine article
• edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM)
• edition of the International Statistical Classification of Diseases and Related Health Problems (ICD)
• religious work
• annotated religious work

Archival document and collections are not presented in the  APA Publication Manual, Seventh Edition . This content is available only on the APA Style website .  This guidance has been expanded from the 6th edition.

Archival sources include letters, unpublished manuscripts, limited-circulation brochures and pamphlets, in-house institutional and corporate documents, clippings, and other documents, as well as such nontextual materials as photographs and apparatus, that are in the personal possession of an author, form part of an institutional collection, or are stored in an archive such as the Archives of the History of American Psychology at the University of Akron or the APA Archives. For any documents like these that are available on the open web or via a database (subscription or nonsubscription), follow the reference templates shown in Chapter 10 of the Publication Manual.

The general format for the reference for an archival work includes the author, date, title, and source. The reference examples shown on this page may be modified for collections requiring more or less specific information to locate materials, for different types of collections, or for additional descriptive information (e.g., a translation of a letter). Authors may choose to list correspondence from their own personal collections, but correspondence from other private collections should be listed only with the permission of the collector.

Keep in mind the following principles when creating references to archival documents and collections:

• As with any reference, the purpose is to direct readers to the source, despite the fact that only a single copy of the document may be available and readers may have some difficulty actually seeing a copy.
• Include as much information as is needed to help locate the item with reasonable ease within the repository. For items from collections with detailed finding aids, the name of the collection may be sufficient; for items from collections without finding aids, more information (e.g., call number, box number, file name or number) may be necessary to help locate the item.
• If several letters are cited from the same collection, list the collection as a reference and provide specific identifying information (author, recipient, and date) for each letter in the in-text citations (see Example 3).
• Use square brackets to indicate information that does not appear on the document.
• Use “ca.” (circa) to indicate an estimated date (see Example 5).
• Use italics for titles of archival documents and collections; if the work does not have a title, provide a description in square brackets without italics.
• Separate elements of the source (e.g., the name of a repository, library, university or archive, and the location of the university or archive) with commas. End the source with a period.
• If a publication of limited circulation is available in libraries, the reference may be formatted as usual for published material, without the archival source.
• Note that private letters (vs. those in an archive or repository) are considered personal communications and cited in the text only.

1. Letter from a repository

Frank, L. K. (1935, February 4). [Letter to Robert M. Ogden]. Rockefeller Archive Center (GEB Series 1.3, Box 371, Folder 3877), Tarrytown, NY, United States.

• Parenthetical citation: (Frank, 1935)
• Narrative citation: Frank (1935)
• Because the letter does not have a title, provide a description in square brackets.

2. Letter from a private collection

Zacharius, G. P. (1953, August 15). [Letter to William Rickel (W. Rickel, Trans.)]. Copy in possession of Hendrika Vande Kemp.

• Parenthetical citation: (Zacharius, 1953)
• Narrative citation: Zacharius (1953)
• In this example, Hendrika Vande Kemp is either the author of the paper or the author of the paper has received permission from Hendrika Vande Kemp to cite a letter in Vande Kemp’s private collection in this way. Otherwise, cite a private letter as a  personal communication .

3. Collection of letters from an archive

Allport, G. W. (1930–1967). Correspondence. Gordon W. Allport Papers (HUG 4118.10), Harvard University Archives, Cambridge, MA, United States.

• Parenthetical citation: (Allport, 1930–1967)
• Narrative citation: Allport (1930–1967)

To cite specific letters in the text, provide the author and range of years as shown in the reference list entry, plus details about who wrote the specific letter to whom and when the specific letter was written.

• Parenthetical citation: (Allport, 1930–1967, G. Boring to Allport, December 26, 1937)
• Narrative citation: Allport (1930–1967, Allport to G. Boring, March 1, 1939)
• Use the parenthetical citation format to cite a letter that E. G. Boring wrote to Allport because Allport is the author in the reference. Use either the parenthetical or narrative citation format to cite letters that Allport wrote.

4. Unpublished papers, lectures from an archive or personal collection

Berliner, A. (1959). Notes for a lecture on reminiscences of Wundt and Leipzig. Anna Berliner Memoirs (Box M50), Archives of the History of American Psychology, University of Akron, Akron, OH, United States.

• Parenthetical citation: (Berliner, 1959)
• Narrative citation: Berliner (1959)

5. Archival/historical source for which the author and/or date is known or is reasonably certain but not stated on the document

Allport, A. (presumed). (ca. 1937). Marion Taylor today—by the biographer [Unpublished manuscript]. Marion Taylor Papers, Schlesinger Library, Radcliffe College, Cambridge, MA, United States.

• Parenthetical citation: (Allport, ca. 1937)
• Narrative citation: Allport (ca. 1937)
• Because the author is reasonably certain but not stated on the document, place the word “presumed” in parentheses after the name, followed by a period.
• Because the date is reasonably certain but not stated on the document, the abbreviation “ca.” (which stands for “circa”) appears before the year in parentheses.

6. Archival source with group author

Subcommittee on Mental Hygiene Personnel in School Programs. (1949, November 5–6). Meeting of Subcommittee on Mental Hygiene Personnel in School Programs. David Shakow Papers (M1360), Archives of the History of American Psychology, University of Akron, Akron, OH, United States.

• Parenthetical citation: (Subcommittee on Mental Hygiene Personnel in School Programs, 1949)
• Narrative citation: Subcommittee on Mental Hygiene Personnel in School Programs (1949)

7. Interview recorded and available in an archive

Smith, M. B. (1989, August 12). Interview by C. A. Kiesler [Tape recording]. President’s Oral History Project, American Psychological Association, APA Archives, Washington, DC, United States.

• Parenthetical citation: (Smith, 1989)
• Narrative citation: Smith (1989)
• For interviews and oral histories recorded in an archive, list the interviewee as the author. Include the interviewer’s name in the description.

8. Transcription of a recorded interview, no recording available

Sparkman, C. F. (1973). An oral history with Dr. Colley F. Sparkman/Interviewer: Orley B. Caudill. Mississippi Oral History Program (Vol. 289), University of Southern Mississippi, Hattiesburg, MS, United States.

• Parenthetical citation: (Sparkman, 1973)
• Narrative citation: Sparkman (1973)

9. Newspaper article clipping, historical, in personal collection

Psychoanalysis institute to open. (1948, September 18). [Clipping from an unidentified Dayton, OH, United States, newspaper]. Copy in possession of author.

• Parenthetical citation: (“Psychoanalysis Institute to Open,” 1948)
• Narrative citation: “Psychoanalysis Institute to Open” (1948)
• Use this format only if you are the person who is in possession of the newspaper clipping.

10. Historical publication of limited circulation

Sci-Art Publishers. (1935). Sci-Art publications [Brochure]. Roback Papers (HUGFP 104.50, Box 2, Folder “Miscellaneous Psychological Materials”), Harvard University Archives, Cambridge, MA, United States.

• Parenthetical citation: (Sci-Art Publishers, 1935)
• Narrative citation: Sci-Art Publishers (1935)

11. Archived photographs, no author and no title

[Photographs of Robert M. Yerkes]. (ca. 1917–1954). Robert Mearns Yerkes Papers (Box 137, Folder 2292), Manuscripts and Archives, Yale University Library, New Haven, CT, United States.

• Parenthetical citation: ([Photographs of Robert M. Yerkes], ca. 1917–1954)
• Narrative citation: [Photographs of Robert M. Yerkes] (ca. 1917–1954)
• Because the archived photographs do not have a title, provide a bracketed description instead.
• Because the archived photographs do not have an author, move the bracketed description to the author position of the reference.

12. Microfilm

U.S. Census Bureau. (1880). 1880 U.S. census: Defective, dependent, and delinquent classes schedule: Virginia [Microfilm]. NARA Microfilm Publication T1132 (Rolls 33–34), National Archives and Records Administration, Washington, DC, United States.

• Parenthetical citation: (U.S. Census Bureau, 1880)
• Narrative citation: U.S. Census Bureau (1880)

Read the full APA guidelines on citing ChatGPT 

OpenAI. (2023).  ChatGPT  (Mar 14 version) [Large language model].  https://chat.openai.com/chat

• Parenthetical citation:  (OpenAI, 2023)
• Narrative citation:  OpenAI (2023)

Author:  The author of the model is OpenAI.

Date:  The date is the year of the version you used. Following the template in Section 10.10, you need to include only the year, not the exact date. The version number provides the specific date information a reader might need.

Title:  The name of the model is “ChatGPT,” so that serves as the title and is italicized in your reference, as shown in the template. Although OpenAI labels unique iterations (i.e., ChatGPT-3, ChatGPT-4), they are using “ChatGPT” as the general name of the model, with updates identified with version numbers.

The version number is included after the title in parentheses. The format for the version number in ChatGPT references includes the date because that is how OpenAI is labeling the versions. Different large language models or software might use different version numbering; use the version number in the format the author or publisher provides, which may be a numbering system (e.g., Version 2.0) or other methods.

Bracketed text  is used in references for additional descriptions when they are needed to help a reader understand what’s being cited. References for a number of common sources, such as journal articles and books, do not include bracketed descriptions, but things outside of the typical peer-reviewed system often do. In the case of a reference for ChatGPT, provide the descriptor “Large language model” in square brackets. OpenAI describes ChatGPT-4 as a “large multimodal model,” so that description may be provided instead if you are using ChatGPT-4. Later versions and software or models from other companies may need different descriptions, based on how the publishers describe the model. The goal of the bracketed text is to briefly describe the kind of model to your reader.

Source:  When the publisher name and the author name are the same, do not repeat the publisher name in the source element of the reference, and move directly to the URL. This is the case for ChatGPT. The URL for ChatGPT is  https://chat.openai.com/chat . For other models or products for which you may create a reference, use the URL that links as directly as possible to the source (i.e., the page where you can access the model, not the publisher’s homepage).

What to include and what to exclude

Works included in a reference list.

The reference list provides a reliable way for readers to identify and locate the works cited in a paper. APA Style papers generally include reference lists, not  bibliographies.

In general, each work cited in the text must appear in the reference list, and each work in the reference list must be cited in the text. Check your work carefully before submitting your manuscript or course assignment to ensure no works cited in the text are missing from the reference list and vice versa, with only the following exceptions.

Works Excluded From a Reference List

There are a few kinds of works that are not included in a reference list. Usually a work is not included because readers cannot recover it or because the mention is so broad that readers do not need a reference list entry to understand the use.

Information on works included in a reference list is covered in Sections 2.12 and 8.4 of the  APA Publication Manual, Seventh Edition

*This guidance has been expanded from the 6th edition.*

• Personal communications  such as emails, phone calls, or text messages are cited in the text only, not in the reference list, because readers cannot retrieve personal communications.
• General mentions of whole websites, whole periodicals, and common software and apps in the text do not require in-text citations or reference list entries because the use is broad and the source is familiar.
• The source of an epigraph does not usually appear in the reference list unless the work is a scholarly book or journal. For example, if you open the paper with an inspirational quotation by a famous person, the source of the quotation does not appear in the reference list because the quotation is meant to set the stage for the work, not substantiate a key point.   
• Quotations from research participants in a study you conducted can be presented and discussed in the text but do not need citations or reference list entries. Citations and reference list entries are not necessary because the quotations are part of your original research. They could also compromise participants’ confidentiality, which is an ethical violation.
• References included in a meta-analysis, which are marked with an asterisk in the reference list, may be cited in the text (or not) at the author’s discretion. This exception is relevant only to authors who are conducting a meta-analysis.

DOIs and URLs

The DOI or URL is the final component of a reference list entry. Because so much scholarship is available and/or retrieved online, most reference list entries end with either a DOI or a URL.

• A DOI is a unique alphanumeric string that identifies content and provides a persistent link to its location on the internet. DOIs can be found in database records and the reference lists of published works.
• A URL specifies the location of digital information on the internet and can be found in the address bar of your internet browser. URLs in references should link directly to the cited work when possible.

Follow these guidelines for including DOIs and URLs in references:

• Include a DOI for all works that have a DOI, regardless of whether you used the online version or the print version.
• If a print work does not have a DOI, do not include any DOI or URL in the reference.
• If an online work has both a DOI and a URL, include only the DOI.
• For works without DOIs from websites (not including academic research databases), provide a URL in the reference (as long as the URL will work for readers).
• For works without DOIs from most  academic research databases , do not include a URL or database information in the reference because these works are widely available. The reference should be the same as the reference for a print version of the work.
• For works from databases that publish original, proprietary material available only in that database (such as the UpToDate database) or for works of limited circulation in databases (such as monographs in the ERIC database), include the name of the database or archive and the URL of the work. If the URL requires a login or is session-specific (meaning it will not resolve for readers), provide the URL of the database or archive home page or login page instead of the URL for the work. See the page on including  database information in references  for more information. 
• If the URL is no longer working or no longer provides readers access to the content you intend to cite, follow the guidance for works with  no source .
• Other alphanumeric identifiers such as the International Standard Book Number (ISBN) and the International Standard Serial Number (ISSN) are not included in APA Style references.

Follow these guidelines to format DOIs and URLs:

• Present both DOIs and URLs as hyperlinks (i.e., beginning with “http:” or “https:”).
• Because a hyperlink leads readers directly to the content, it is not necessary to include the words “Retrieved from” or “Accessed from” before a DOI or URL.
• It is acceptable to use either the default display settings for hyperlinks in your word-processing program (e.g., usually blue font, underlined) or plain text that is not underlined.
• Leave links live if the work is to be published or read online.
• Follow the current recommendations of the International DOI Foundation to format DOIs in the reference list, which as of this publication is as follows:

https://doi.org/ xxxxx

• The string “https://doi.org/” is a way of presenting a DOI as a link, and “xxxxx” refers to the DOI number.
• The preferred format of the DOI has changed over time. Although older works use previous formats (e.g., “http:/dx.doi.org/” or “doi:” or “DOI:” before the DOI number), in your reference list, standardize DOIs into the current preferred format for all entries. For example, use  https://doi.org/10.1037/a0040251  in your reference even though that article, published in 2016, presented the number in an older format.
• Copy and paste the DOI or URL from your web browser directly into your reference list to avoid transcription errors. Do not change the capitalization or punctuation of the DOI or URL. Do not add line breaks manually to the hyperlink; it is acceptable if your word-processing program automatically adds a break or moves the hyperlink to its own line.
• Do not add a period after the DOI or URL because this may interfere with link functionality.

When a DOI or URL is long or complex, you may use shortDOIs or shortened URLs if desired.

• Use the  shortDOI service  provided by the International DOI Foundation to create shortDOIs. A work can have only one DOI and only one shortDOI; the shortDOI service will either produce a new shortDOI for a work that has never had one or retrieve an existing shortDOI.
• Some websites provide their own branded shortened URLs, and independent URL shortening services are available as well. Any shortened URL is acceptable in a reference as long as you check the link to ensure that it takes you to the correct location.
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A publication of the harvard college writing program.

Harvard Guide to Using Sources 

• The Honor Code
• Sample Bibliography

Below you’ll find a Bibliography adapted from a research paper written by Aishani Aatresh for her Technology, Environment, and Society course.

• Citation Management Tools
• In-Text Citations
• Bibliography
• Examples of Commonly Cited Sources
• Frequently Asked Questions about Citing Sources in Chicago Format

PDFs for This Section

• Citing Sources
• Online Library and Citation Tools

Purdue Online Writing Lab Purdue OWL® College of Liberal Arts

Annotated Bibliography Samples

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Copyright ©1995-2018 by The Writing Lab & The OWL at Purdue and Purdue University. All rights reserved. This material may not be published, reproduced, broadcast, rewritten, or redistributed without permission. Use of this site constitutes acceptance of our terms and conditions of fair use.

Below you will find sample annotations from annotated bibliographies, each with a different research project. Remember that the annotations you include in your own bibliography should reflect your research project and/or the guidelines of your assignment.

As mentioned elsewhere in this resource, depending on the purpose of your bibliography, some annotations may summarize, some may assess or evaluate a source, and some may reflect on the source’s possible uses for the project at hand. Some annotations may address all three of these steps. Consider the purpose of your annotated bibliography and/or your instructor’s directions when deciding how much information to include in your annotations.

Please keep in mind that all your text, including the write-up beneath the citation, must be indented so that the author's last name is the only text that is flush left.

Sample MLA Annotation

Lamott, Anne. Bird by Bird: Some Instructions on Writing and Life . Anchor Books, 1995.

Lamott's book offers honest advice on the nature of a writing life, complete with its insecurities and failures. Taking a humorous approach to the realities of being a writer, the chapters in Lamott's book are wry and anecdotal and offer advice on everything from plot development to jealousy, from perfectionism to struggling with one's own internal critic.

In the process, Lamott includes writing exercises designed to be both productive and fun. Lamott offers sane advice for those struggling with the anxieties of writing, but her main project seems to be offering the reader a reality check regarding writing, publishing, and struggling with one's own imperfect humanity in the process. Rather than a practical handbook to producing and/or publishing, this text is indispensable because of its honest perspective, its down-to-earth humor, and its encouraging approach.

Chapters in this text could easily be included in the curriculum for a writing class. Several of the chapters in Part 1 address the writing process and would serve to generate discussion on students' own drafting and revising processes. Some of the writing exercises would also be appropriate for generating classroom writing exercises. Students should find Lamott's style both engaging and enjoyable.

In the sample annotation above, the writer includes three paragraphs: a summary, an evaluation of the text, and a reflection on its applicability to his/her own research, respectively.

For information on formatting MLA citations, see our MLA 9th Edition (2021) Formatting and Style Guide .

Sample APA Annotation

Ehrenreich, B. (2001). Nickel and dimed: On (not) getting by in America . Henry Holt and Company.

In this book of nonfiction based on the journalist's experiential research, Ehrenreich attempts to ascertain whether it is currently possible for an individual to live on a minimum-wage in America. Taking jobs as a waitress, a maid in a cleaning service, and a Walmart sales employee, the author summarizes and reflects on her work, her relationships with fellow workers, and her financial struggles in each situation.

An experienced journalist, Ehrenreich is aware of the limitations of her experiment and the ethical implications of her experiential research tactics and reflects on these issues in the text. The author is forthcoming about her methods and supplements her experiences with scholarly research on her places of employment, the economy, and the rising cost of living in America. Ehrenreich’s project is timely, descriptive, and well-researched.

The annotation above both summarizes and assesses the book in the citation. The first paragraph provides a brief summary of the author's project in the book, covering the main points of the work. The second paragraph points out the project’s strengths and evaluates its methods and presentation. This particular annotation does not reflect on the source’s potential importance or usefulness for this person’s own research.

For information on formatting APA citations, see our APA Formatting and Style Guide .

Sample Chicago Manual of Style Annotation

Davidson, Hilda Ellis. Roles of the Northern Goddess . London: Routledge, 1998.

Davidson's book provides a thorough examination of the major roles filled by the numerous pagan goddesses of Northern Europe in everyday life, including their roles in hunting, agriculture, domestic arts like weaving, the household, and death. The author discusses relevant archaeological evidence, patterns of symbol and ritual, and previous research. The book includes a number of black and white photographs of relevant artifacts.

This annotation includes only one paragraph, a summary of the book. It provides a concise description of the project and the book's project and its major features.

For information on formatting Chicago Style citations, see our Chicago Manual of Style resources.

How to Cite in APA Format (7th edition): Citation Style Guide

Table of Contents

What is APA 7th Edition ?    

The American Psychological Association (APA) introduced the latest edition of the APA Style Manual (i.e., APA 7 th edition ) in 2019. APA Style has its origins in 1929 , when a group of academics and professionals decided to develop a set of guidelines that would standardize scientific writing. The earliest form was a seven-page guide published in the Psychological Bulletin . The first formal edition of the APA Publication Manual was published in 1952, with subsequent editions appearing in 1974, 1983, 1994, 2001, 2009, and most recently, in 2019.  

Over the years, the APA style guide has evolved considerably to meet the changing needs of a wide range of disciplines, from social and behavioral sciences to health care, natural sciences, and humanities. APA Style is widely used by academic journals and books.  

As APA 7 th edition is the current and most updated version, students and researchers should familiarize themselves with the style guidelines, including the reference and citation styles.  

Who Should Use APA 7th Edition ?    

The aim of style guides such as the APA Style Guide is to simplify the work of editors and make it easier for readers to understand a text by ensuring a uniform format for a given publication. For example, the APA Style Guide will contain guidelines that lay down the APA reference format and APA style citation for authors to follow.  

The APA Style Guide can be a valuable reference when writing and formatting academic papers, irrespective of discipline. However, this style is primarily used by professionals, researchers, and students in the social sciences (e.g., sociology, psychology, anthropology), behavioral sciences, education, business, and nursing.  

If you are a student, you may consult with an instructor to check what style your discipline uses before using APA Style in your work. Most importantly, be sure to check the guidelines of your university or the journal you plan to publish in to ensure APA 7 th edition is the correct style to use.   

APA In-text Citations    

Researchers rely on citations and references to give credit to original sources, support their arguments, and guide readers to additional information for further study. Let us now look at how to cite sources in APA format. The formatting requirements of APA 7th edition citation for referring to secondary sources in your text are as follows.  

The APA citation format includes the author’s last name and the year of publication. When referring to a particular part of a source, the page number may be included, e.g., “(Rawat et al., 2018, p. 115).”  

APA style citation in the text may be parenthetical or narrative.  

In parenthetical citation, the author’s name and the year of publication are placed in parentheses within the text. This style is used at the end of a sentence. See below for an example:  

• Gender, age, education, and income determine a person’s risk and adaptive capacities (Birkmann et al., 2022).  

In narrative citation, the author’s name appears as a part of the sentence, followed by the publication year in parentheses. See below for an example:  

• Birkman et al. (2022) note that gender, age, education, and income determine a person’s risk and adaptive capacities.

Table 1: How to cite sources in APA format when there are multiple authors and organizations as authors  

*First time with an abbreviation: (World Health Organization [WHO], 2016); all subsequent citations: (WHO, 2016)  

Table 2: How to cite sources in APA format when some information is missing  

  APA Reference Format    

After APA citations , let us now look at the APA reference format. As an academic, you might use a wide array of source types. According to the APA style guide , each type is formatted in a certain manner. The most commonly used sources are journal articles, books, and dissertations. However, you occasionally might need to cite webpages, podcasts, and news article. How would all these appear in an APA 7 reference page ? You will find your answers in Table 3!  

Table 3: How to format various sources in the APA reference list  

Formatting the APA Paper    

Papers formatted according to APA 7th edition typically contain the following elements:  

Title page with the title (bold, centered), running head and page number in the header, author names and affiliations, and author notes (ORCID ID, conflicts of interest, etc.); see below:  

Next comes the abstract . It should be double spaced and use consistent font. The keywords appear below the abstract, with an indent.  

For the main text, margins are 1 inch on all four side s. T he text is double spaced . T he font used should be consistent . H eadings are used to separate sections , and d etails on heading levels are as follows:  

Source: https://apastyle.apa.org/style-grammar-guidelines/paper-format/headings

Finally, the APA 7 reference page contains the references to all sources used in the paper. References are double-spaced and use hanging indents :  

Style guides in academic writing serve to standardize formatting, citations, and language use across scholarly works. They provide readers with cues they can use to follow the text more efficiently and to locate information of interest to them. In other words, it avoids distraction of unfamiliar or non-uniform formatting.  

In this piece about APA 7th edition , we have explained in detail the nuances of APA citations , including how to cite in APA format and how to format the APA 7 reference page . A brief primer on formatting a manuscript in line with APA 7th edition is also provided.  

Frequently Asked Questions    

• What are the major changes from APA 6th to APA 7th Edition ?  

The updates from APA 6th to APA 7th Edition reflect a commitment to improving clarity, inclusivity, and usability in scholarly writing. The salient differences from APA 6 th edition are as follows:  

• Title page format: The title page has been updated for professionals. The author note includes information such as ORCID IDs and conflict of interest disclosures.
• Running head: The running head format has been simplified for professional authors.
• Font flexibility : There is greater flexibility in font specifications to enhance accessibility.
• Bias-free language guidelines: The guidelines for bias-free language have been updated to promote inclusivity and respect when writing about various identities.  
• Reference formatting: In APA 7th edition , the number of authors included in a reference entry has changed to allow up to 20 authors before using an ellipsis. The presentation of DOIs and URLs has been standardized.  
• In-text citations: In-text citations for works with three or more authors have been simplified to include only the first author’s name followed by “et al.”
• Accessibility: APA 7th edition emphasizes accessibility for users with disabilities, ensuring that guidelines support various modalities, including screen readers.  
• How do I cite a journal article in APA 7th Edition ?  

According to APA 7 th edition , a reference would appear as below:  

Author, A. A. (Year of Publication). Title of the article. Title of the Journal, volume number (issue number), pages. https://doi.org/xx.xxx/yyyy .  

The in-text citation would include the author name(s) and year of publication, e.g., (Andriolatou, 2007).   

• How should multiple authors be cited in APA 7th Edition?  

APA 7 citation style would vary depending on the number of authors and whether you are citing the source parenthetically or narratively:  

Single author, parenthetical: (Bik, 2020)  

Single author, narrative: Bik (2020) reported that…  

Two authors, parenthetical: (Bik & Urs, 2019)  

Two authors, narrative: As demonstrated by Bik and Urs (2019), …  

Three or more authors, parenthetical: (Bik et al., 2023)  

Three or more authors, narrative: Bik et al. (2023) have published…  

• How do I format in-text citations for a direct quote?  

When someone else’s words are copied verbatim in your paper, it refers to a direct quote.   

For APA 7 citation of short direct quotes (<40 words), use quotation marks around the quote and cite the author, year, and page number:  

Another way to look at it is how people “get a broader range of experience than they would on a feature” (Catmull, 2014, p. 209).  

For APA 7 citation of longer quotes, or block quotes, the sentence preceding the quote ends in a colon and is followed by the quoted text. No quotation marks are used. The quote is indented and cited without a period at the end (see the figure below).   

Figure: How to cite block quotes in APA citations

To conclude  

Over the years, the APA style guide has evolved significantly. The current version, APA 7th edition , has expanded in both scope and size to accommodate the needs of wide-ranging fields and to address changing times. Despite these changes, the core intention—to provide clear, consistent guidelines for effective communication—remains at the heart of APA Style .   

For busy researchers, not only is it difficult to remember the different elements of citations and references and the subtle differences in formatting, but it also a tedious task to manually format in-text citations and reference lists and ensure consistency between them. In addition, you might need to format (and even re-format) your manuscript according to different journals, which might follow styles different from APA 7th edition (MLA, Chicago, AMA, etc.)! But there is no need to worry…help is at hand!

Citation generators are online tools that format references in different styles. There are a number of citation generators available, and Paperpal has launched its new citation generator , which stands out from the others in many ways. As a part of Paperpal’s writing workflow, you can easily find and cite sources accurately in a matter of seconds.

This free citation generator supports the updated recent versions of 10,000+ styles, including APA 7th edition . Therefore, it can serve as an APA 7th edition citation generator if you need one! What’s more, you don’t need to switch between multiple tools to search, save, or format your citations. You can rely Paperpal’s citation generation feature for help with citing sources accurately and consistently in your writing. Explore Paperpal for free now!  

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Bibliography

Ai generator.

Writing a research paper or a thesis , you may encounter some references or some links below or at the very end of the page. We call these annotated bibliographies , or just bibliographies. 

What Is a Bibliography?

A bibliography is a list of information that is usually found below the pages or at the end of the pages of a book , a research paper, a thesis paper, or even a report . The bibliography as the term itself is another word for listing your sources.

Bibliography Formats

Creating a bibliography is essential for any academic work to credit sources used. The format varies based on the citation style. Below are examples for the most common styles: APA, MLA , and Chicago.

1. APA (American Psychological Association) Style

Books: Author(s). (Year). Title of the book . Publisher.

Example: Smith, J. (2020). Understanding English Literature . Penguin Books.

Articles: Author(s). (Year). Title of the article. Title of the Journal, Volume (Issue), Page numbers. DOI

Example: Doe, J. (2019). The impact of modern technology on literature. Literary Review, 34 (2), 145-158. https://doi.org/10.1234/lr.2019.02.015

2. MLA (Modern Language Association) Style

Books: Author(s). Title of the book . Publisher, Year.

Example: Smith, John. Understanding English Literature . Penguin Books, 2020.

Articles: Author(s). “Title of the article.” Title of the Journal , vol. Volume, no. Issue, Year, pp. Page numbers.

Example: Doe, Jane. “The Impact of Modern Technology on Literature.” Literary Review , vol. 34, no. 2, 2019, pp. 145-158.

3. Chicago Style

Books: Author(s). Title of the book . Place of publication: Publisher, Year.

Example: Smith, John. Understanding English Literature . New York: Penguin Books, 2020.

Articles: Author(s). “Title of the article.” Title of the Journal Volume, no. Issue (Year): Page numbers. DOI

Example: Doe, Jane. “The Impact of Modern Technology on Literature.” Literary Review 34, no. 2 (2019): 145-158. https://doi.org/10.1234/lr.2019.02.015

Examples of Bibliography for Students

• Doe, J. (2021). Understanding Climate Change . Environmental Press.
• Smith, L. M. (2020). The impact of social media on adolescent mental health. Journal of Youth Studies, 35 (2), 145-160.
• Johnson, R. (2019, October 10). The history of the internet. Tech Times . https://www.techtimes.com/history-internet
• Brown, A. (2018). Renewable energy sources. In T. Green (Ed.), Advances in Environmental Science (pp. 50-75). Nature Publishing.
• White, P. (2017). AI advancements in healthcare. In S. Lewis (Ed.), Proceedings of the International Conference on Health Informatics (pp. 102-110). HealthTech.
• Doe, Jane. Understanding Climate Change . Environmental Press, 2021.
• Smith, Lisa M. “The Impact of Social Media on Adolescent Mental Health.” Journal of Youth Studies , vol. 35, no. 2, 2020, pp. 145-160.
• Johnson, Robert. “The History of the Internet.” Tech Times , 10 Oct. 2019, https://www.techtimes.com/history-internet .
• Brown, Alice. “Renewable Energy Sources.” Advances in Environmental Science , edited by Thomas Green, Nature Publishing, 2018, pp. 50-75.
• White, Peter. “AI Advancements in Healthcare.” Proceedings of the International Conference on Health Informatics , edited by Sarah Lewis, HealthTech, 2017, pp. 102-110.

Chicago Style

• Smith, Lisa M. “The Impact of Social Media on Adolescent Mental Health.” Journal of Youth Studies 35, no. 2 (2020): 145-160.
• Johnson, Robert. “The History of the Internet.” Tech Times . Last modified October 10, 2019. https://www.techtimes.com/history-internet .
• Brown, Alice. “Renewable Energy Sources.” In Advances in Environmental Science , edited by Thomas Green, 50-75. Nature Publishing, 2018.
• White, Peter. “AI Advancements in Healthcare.” In Proceedings of the International Conference on Health Informatics , edited by Sarah Lewis, 102-110. HealthTech, 2017.

Examples of Bibliography in Research

• Watson, G. H. (2022). Modern Geopolitics: Analyzing Global Trends . Global Press.
• Thompson, R. A., & Williams, D. J. (2021). The role of artificial intelligence in modern warfare. Defense Studies Journal, 28 (4), 200-215.
• Hernandez, M. (2020, December 5). The evolution of quantum computing. Quantum Today . https://www.quantumtoday.com/evolution-quantum-computing
• Cooper, L. (2019). Sustainable agriculture practices. In H. Brown (Ed.), Innovations in Agricultural Science (pp. 85-102). GreenField Publishers.
• Jackson, E. (2018). Ethical implications of genetic engineering. In A. Patel (Ed.), Proceedings of the Bioethics Symposium (pp. 55-63). Bioethics Association.
• Watson, George H. Modern Geopolitics: Analyzing Global Trends . Global Press, 2022.
• Thompson, Rachel A., and David J. Williams. “The Role of Artificial Intelligence in Modern Warfare.” Defense Studies Journal , vol. 28, no. 4, 2021, pp. 200-215.
• Hernandez, Maria. “The Evolution of Quantum Computing.” Quantum Today , 5 Dec. 2020, https://www.quantumtoday.com/evolution-quantum-computing .
• Cooper, Lisa. “Sustainable Agriculture Practices.” Innovations in Agricultural Science , edited by Harold Brown, GreenField Publishers, 2019, pp. 85-102.
• Jackson, Emily. “Ethical Implications of Genetic Engineering.” Proceedings of the Bioethics Symposium , edited by Amit Patel, Bioethics Association, 2018, pp. 55-63.
• Thompson, Rachel A., and David J. Williams. “The Role of Artificial Intelligence in Modern Warfare.” Defense Studies Journal 28, no. 4 (2021): 200-215.
• Hernandez, Maria. “The Evolution of Quantum Computing.” Quantum Today . Last modified December 5, 2020. https://www.quantumtoday.com/evolution-quantum-computing .
• Cooper, Lisa. “Sustainable Agriculture Practices.” In Innovations in Agricultural Science , edited by Harold Brown, 85-102. GreenField Publishers, 2019.
• Jackson, Emily. “Ethical Implications of Genetic Engineering.” In Proceedings of the Bioethics Symposium , edited by Amit Patel, 55-63. Bioethics Association, 2018.

Examples of Bibliography for School Project

• Johnson, A. (2021). The Solar System Explained . Space Science Press.
• Patel, R. (2020). The effects of plastic pollution on marine life. Environmental Studies Journal, 34 (1), 45-58.
• Martin, L. (2019, September 15). The history of video games. Game World . https://www.gameworld.com/history-videogames
• Smith, J. (2018). The role of bees in pollination. In K. Thompson (Ed.), Insect Biology and Ecology (pp. 120-135). Nature Publishing.
• Nguyen, T. (2020, June 10). Innovative teaching methods in 21st-century classrooms. Education Today . https://www.educationtoday.com/innovative-teaching-methods
• Johnson, Anne. The Solar System Explained . Space Science Press, 2021.
• Patel, Raj. “The Effects of Plastic Pollution on Marine Life.” Environmental Studies Journal , vol. 34, no. 1, 2020, pp. 45-58.
• Martin, Lucy. “The History of Video Games.” Game World , 15 Sept. 2019, https://www.gameworld.com/history-videogames .
• Smith, John. “The Role of Bees in Pollination.” Insect Biology and Ecology , edited by Karen Thompson, Nature Publishing, 2018, pp. 120-135.
• Nguyen, Tran. “Innovative Teaching Methods in 21st-Century Classrooms.” Education Today , 10 June 2020, https://www.educationtoday.com/innovative-teaching-methods .
• Patel, Raj. “The Effects of Plastic Pollution on Marine Life.” Environmental Studies Journal 34, no. 1 (2020): 45-58.
• Martin, Lucy. “The History of Video Games.” Game World . Last modified September 15, 2019. https://www.gameworld.com/history-videogames .
• Smith, John. “The Role of Bees in Pollination.” In Insect Biology and Ecology , edited by Karen Thompson, 120-135. Nature Publishing, 2018.
• Nguyen, Tran. “Innovative Teaching Methods in 21st-Century Classrooms.” Education Today , June 10, 2020. https://www.educationtoday.com/innovative-teaching-methods .

Examples of Bibliography for Books

• Carson, R. (1962). Silent Spring . Houghton Mifflin.
• Diamond, J., & Ordunio, D. (1992). The Third Chimpanzee: The Evolution and Future of the Human Animal . HarperCollins.
• Marcus, G. E. (Ed.). (1995). Technoscientific Imaginaries: Conversations, Profiles, and Memoirs . University of Chicago Press.
• Turabian, K. L. (2013). A Manual for Writers of Research Papers, Theses, and Dissertations (8th ed.). University of Chicago Press.
• Sagan, C. (1980). Cosmos . Vol. 1. Random House.
• Carson, Rachel. Silent Spring . Houghton Mifflin, 1962.
• Diamond, Jared, and Douglas Ordunio. The Third Chimpanzee: The Evolution and Future of the Human Animal . HarperCollins, 1992.
• Marcus, George E., editor. Technoscientific Imaginaries: Conversations, Profiles, and Memoirs . University of Chicago Press, 1995.
• Turabian, Kate L. A Manual for Writers of Research Papers, Theses, and Dissertations . 8th ed., University of Chicago Press, 2013.
• Sagan, Carl. Cosmos . Vol. 1, Random House, 1980.
• Carson, Rachel. Silent Spring . Boston: Houghton Mifflin, 1962.
• Diamond, Jared, and Douglas Ordunio. The Third Chimpanzee: The Evolution and Future of the Human Animal . New York: HarperCollins, 1992.
• Marcus, George E., ed. Technoscientific Imaginaries: Conversations, Profiles, and Memoirs . Chicago: University of Chicago Press, 1995.
• Turabian, Kate L. A Manual for Writers of Research Papers, Theses, and Dissertations . 8th ed. Chicago: University of Chicago Press, 2013.
• Sagan, Carl. Cosmos . Vol. 1. New York: Random House, 1980.

Examples of Bibliography for Websites

• Walker, L. (2021, May 10). How climate change is affecting agriculture. Environmental News Today . https://www.environmentalnewstoday.com/climate-change-agriculture
• Johnson, M. (2020, July 22). The history of the Roman Empire. History for Kids . https://www.historyforkids.com/roman-empire
• Green, T. (2019, September 15). The future of renewable energy. EcoBlog . https://www.ecoblog.com/future-renewable-energy
• World Health Organization. (2020, November 30). COVID-19 updates. https://www.who.int/covid-19-updates
• U.S. Census Bureau. (2021). U.S. and world population clock. https://www.census.gov/popclock
• Walker, Lisa. “How Climate Change Is Affecting Agriculture.” Environmental News Today , 10 May 2021, https://www.environmentalnewstoday.com/climate-change-agriculture .
• Johnson, Mary. “The History of the Roman Empire.” History for Kids , 22 July 2020, https://www.historyforkids.com/roman-empire .
• Green, Thomas. “The Future of Renewable Energy.” EcoBlog , 15 Sept. 2019, https://www.ecoblog.com/future-renewable-energy .
• World Health Organization. “COVID-19 Updates.” World Health Organization , 30 Nov. 2020, https://www.who.int/covid-19-updates .
• U.S. Census Bureau. “U.S. and World Population Clock.” U.S. Census Bureau , 2021, https://www.census.gov/popclock .
• Walker, Lisa. “How Climate Change Is Affecting Agriculture.” Environmental News Today . Last modified May 10, 2021. https://www.environmentalnewstoday.com/climate-change-agriculture .
• Johnson, Mary. “The History of the Roman Empire.” History for Kids . Last modified July 22, 2020. https://www.historyforkids.com/roman-empire .
• Green, Thomas. “The Future of Renewable Energy.” EcoBlog . Last modified September 15, 2019. https://www.ecoblog.com/future-renewable-energy .
• World Health Organization. “ COVID-19 Updates .” World Health Organization . Last modified November 30, 2020. https://www.who.int/covid-19-updates .
• U.S. Census Bureau. “U.S. and World Population Clock.” U.S. Census Bureau . Accessed 2021. https://www.census.gov/popclock .

Examples of Bibliography in APA Style

Single Author:

Multiple Authors:

2. Journal Article:

• Johnson, P. L., & Thompson, R. A. (2019). Advancements in renewable energy technologies. Journal of Environmental Science, 28 (3), 210-225.

3. Website:

News Website:

Educational Website:

4. Chapter in an Edited Book:

5. conference paper:, 6. online newspaper article:.

• Black, S. (2020, July 15). New trends in education technology. The Education Times . https://www.edtimes.com/new-trends-edtech
• Grey, T. (2019). Digital marketing strategies . E-Publishing Inc. https://www.epublishing.com/digital-marketing-strategies

8. Government Report:

• National Institute of Health. (2020). Annual report on mental health (NIH Publication No. 20-1234). https://www.nih.gov/mental-health-annual-report

9. Magazine Article:

• Hill, K. (2019, March). The rise of renewable energy. Energy Monthly , 48(3), 22-28.

10. Dissertation:

• Green, L. (2021). Exploring renewable energy policies in Europe (Doctoral dissertation). University of Environmental Studies.

More Examples & Samples of Bibliography in PDF

1. bibliography sample.

2. Bibliography Format

3. Bibliography Format Example

4. Bibliography Style Sheet

5. Bibliography Examples PDF

6. MLA Style Bibliography

7. APA Annotated Bibliography

8. Bibliography Example in PDF

9. MLA Annotated Bibliography

10. Book Bibliography Example

11. Bibliography Examples for Students

12. Bibliography in Research

Purpose of a Bibliography

A bibliography serves several essential functions in academic and research work. Here are the primary purposes:

1. Crediting Sources

A bibliography acknowledges the work of other authors and researchers. It gives credit to those whose ideas, theories, and research have contributed to your work.

2. Avoiding Plagiarism

By properly citing sources, a bibliography helps you avoid plagiarism. Plagiarism is the unethical practice of using someone else’s work or ideas without proper acknowledgment.

3. Providing Evidence

A bibliography supports the claims and arguments made in your work. It shows that your research is based on credible sources and provides evidence to back up your points.

4. Guiding Further Research

A well-compiled bibliography can guide readers interested in exploring the topic further. It provides a list of resources that readers can use to expand their knowledge.

5. Demonstrating Research Effort

Including a comprehensive bibliography demonstrates the depth of your research. It shows that you have thoroughly investigated the topic and consulted a variety of sources.

6. Enhancing Credibility

A bibliography enhances the credibility of your work. It shows that you have engaged with existing research and literature, adding legitimacy to your findings and arguments.

7. Facilitating Verification

A bibliography allows others to verify the sources you used. This transparency helps maintain the integrity of academic and research work.

Rules of Bibliography

Creating a bibliography involves following specific rules to ensure accuracy, consistency, and clarity. Here are the essential rules for different citation styles:

1. General Rules

• Consistency : Use the same citation style throughout your bibliography.
• Alphabetical Order : List entries alphabetically by the author’s last name.
• Multiple Works by the Same Author : Arrange multiple works by the same author in chronological order, starting with the oldest.
• Author Names : Use the full name of authors (last name first), followed by their initials (for APA) or full first name (for MLA and Chicago).
• Titles : Italicize book and journal titles. Use quotation marks for article and chapter titles.
• Publication Details : Include all necessary publication details such as the publisher, year, volume, issue, and page numbers.
• Hanging Indent : Use a hanging indent for each entry, where the first line is flush left, and subsequent lines are indented.

2. APA Style Rules

• Books : Author(s). (Year). Title of the book . Publisher.
• Articles : Author(s). (Year). Title of the article. Title of the Journal, Volume (Issue), Page numbers. DOI
• Smith, J. (2020). Understanding English Literature . Penguin Books.
• Doe, J. (2019). The impact of modern technology on literature. Literary Review, 34 (2), 145-158. https://doi.org/10.1234/lr.2019.02.015

3. MLA Style Rules

• Books : Author(s). Title of the book . Publisher, Year.
• Articles : Author(s). “Title of the article.” Title of the Journal , vol. Volume, no. Issue, Year, pp. Page numbers.
• Smith, John. Understanding English Literature . Penguin Books, 2020.
• Doe, Jane. “The Impact of Modern Technology on Literature.” Literary Review , vol. 34, no. 2, 2019, pp. 145-158.

4. Chicago Style Rules

• Books : Author(s). Title of the book . Place of publication: Publisher, Year.
• Articles : Author(s). “Title of the article.” Title of the Journal Volume, no. Issue (Year): Page numbers. DOI
• Smith, John. Understanding English Literature . New York: Penguin Books, 2020.
• Doe, Jane. “The Impact of Modern Technology on Literature.” Literary Review 34, no. 2 (2019): 145-158. https://doi.org/10.1234/lr.2019.02.015 .

What is included in a Bibliography

A bibliography provides a comprehensive list of all the sources you have referred to or consulted in your research work. Here are the key elements included in a bibliography:

1. Author(s)

• Books : Full names of all authors. List them in the order they appear in the source.
• Articles : Full names of all authors. In APA, use initials for first and middle names; in MLA and Chicago, use full first names.
• Websites : Name of the author, if available. If not, use the name of the organization.
• Books : Full title of the book, italicized.
• Articles : Title of the article in quotation marks. Title of the journal or magazine in italics.
• Websites : Title of the specific page or article in quotation marks. The website title in italics if different from the author or organization.

3. Publication Date

• Books : Year of publication.
• Articles : Year, and if available, the month and day.
• Websites : Date of publication or last update.

4. Publisher

• Books : Name of the publishing company.
• Websites : The organization responsible for publishing the content, if available.

5. Volume and Issue Numbers (for Articles)

• Journals : Include the volume number (italicized) and issue number (in parentheses).

6. Page Numbers (for Articles)

• Articles : The range of pages the article appears on.

7. DOI or URL

• Articles : Digital Object Identifier (DOI) for journal articles.
• Websites : The full URL of the webpage.

Bibliography vs. References

How to Make a Bibliography

• Publication date
• Volume and issue numbers (for articles)
• Page numbers
• DOI or URL (for online sources)
• Choose a Citation Style : Use APA, MLA, or Chicago style as required.
• Format Entries : Follow the specific rules for your chosen style.

APA Style Examples

• Book : Smith, J. (2020). Understanding English Literature . Penguin Books.
• Article : Doe, J. (2019). The impact of modern technology on literature. Literary Review, 34 (2), 145-158. https://doi.org/10.1234/lr.2019.02.015

MLA Style Examples

• Book : Smith, John. Understanding English Literature . Penguin Books, 2020.
• Article : Doe, Jane. “The Impact of Modern Technology on Literature.” Literary Review , vol. 34, no. 2, 2019, pp. 145-158.

Chicago Style Examples

• Book : Smith, John. Understanding English Literature . New York: Penguin Books, 2020.
• Article : Doe, Jane. “The Impact of Modern Technology on Literature.” Literary Review 34, no. 2 (2019): 145-158. https://doi.org/10.1234/lr.2019.02.015 .
• Alphabetical Order : By the author’s last name.
• Multiple Works by Same Author : List them chronologically.
• Use a Hanging Indent : The first line of each entry is flush left, and subsequent lines are indented.
• Review and Proofread : Ensure accuracy and consistency.

Why is a bibliography important?

It credits sources, avoids plagiarism, and provides evidence, enhancing the credibility and reliability of your academic work.

How do you format a book in a bibliography?

List the author, year, title in italics, and publisher. Follow the rules of your chosen citation style (APA, MLA, Chicago).

What is the difference between a bibliography and a reference list?

A bibliography includes all consulted sources, while a reference list only includes sources directly cited in the text.

How should multiple authors be listed in a bibliography?

List all authors in the order they appear in the source. Use commas to separate names, and an ampersand or “and” before the last author.

How do you cite an online source in a bibliography?

Include the author (or organization), year, title, and URL. Follow specific style guidelines (APA, MLA, Chicago).

What is a hanging indent in a bibliography?

A formatting style where the first line of each entry is flush left, and subsequent lines are indented.

Can I include sources I did not cite in my bibliography?

Yes, in a bibliography, you can include sources you consulted for background information, even if not directly cited.

What information is needed to cite a journal article?

Author(s), year, article title, journal title, volume, issue, page numbers, and DOI if available.

Do different citation styles have different rules?

Yes, APA, MLA, and Chicago styles have unique rules for formatting entries. Follow the specific guidelines for your chosen style.

How often should I update my bibliography?

Update it whenever you add new sources or find more accurate information. Regular updates ensure accuracy and completeness.

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ESOL 1311 - Mansour

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The Annotated Bibliography

How to Make an Annotated Bibliography

An annotated bibliography is a bibliography [a list of the sources- like articles & books- referred to in a scholarly work] that gives a summary of each of the entries. The purpose of annotations is to provide the reader with a summary and an evaluation of the source. Each summary should be a concise exposition of the source's central idea(s) and give the reader a general idea of the source's content.

Source: The Free Dictionary

Contents include:

• Summary : Some annotations merely summarize the source. What are the main arguments? What is the point of this book or article? What topics are covered? If someone asked what this article/book is about, what would you say? The length of your annotations will determine how detailed your summary is.  Who is the intended audience?
• Assessment : After summarizing a source, it may be helpful to evaluate it. Is it a useful source? How does it compare with other sources in your bibliography? Is the information reliable? Is this source biased or objective? What is the goal of this source?
• Evaluation : Once you've summarized and assessed a source, you need to ask how it fits into your research. Was this source helpful to you? How does it help you shape your argument? How can you use this source in your research project? Has it changed how you think about your topic?
• Information on the author(s) : What is the author's authority? What are their qualifications?

Source: The OWL, Annotated Bibliographies.

More Annotated Bibliography Examples:

(These are links to electronic articles/annotated bibliographies found through the UTEP Library online catalog)

Conte, S. (2015). Learning Community Literature: Annotated Bibliography. New Directions For Student Services , (149), 91-100.  Retrieved from: http://0-search.ebscohost.com.lib.utep.edu/login.aspx?direct=true&db=a9h&AN=101557586&site=ehost-live&scope=site

Cox, M. B., & Faris, M. J. (2015). An Annotated Bibliography of LGBTQ Rhetorics. Present Tense: A Journal Of Rhetoric In Society , 4 (2). Retrieved from: http://www.presenttensejournal.org/volume-4/an-annotated-bibliography-of-lgbtq-rhetorics/ 

Johnson, D. E., Schroder, S. I., Erickson, J. P., & Grimes, K. N. (2008). Annotated Bibliography on the Teaching of Psychology: 2007. Teaching Of Psychology , 35 (4), 376-384. doi:10.1080/00986280802390811 Retrieved from: http://0-search.ebscohost.com.lib.utep.edu/login.aspx?direct=true&db=a9h&AN=35052650&site=ehost-live&scope=site

Masschelein, A., Meurée, C., Martens, D., Vanasten, S., & Willem, G. (2014). The Literary Interview: An Annotated Bibliography. Poetics Today , 35 (1/2), 51-116. doi:10.1215/03335372-2646854 Retrieved from : http://0-poeticstoday.dukejournals.org.lib.utep.edu/content/35/1-2/51.full.pdf+html?sid=fe54194d-1a61-456d-8a75-1e22d6184258

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Organizing and Managing Citations

Citation management software can help you manage your research and easily organize and format your citations in a wide variety of citation styles. Check out the links below for more information about these useful programs. 

• Citation Management Basics This guide provides an overview of citation management software options, including basic functions and the differences between the various options available, including EndNote, EndNote Web, and Zotero. Also provided is contact information for Purdue librarians available to provide citation management support for Purdue faculty, students, and staff.
• EndNote at Purdue This guide provides detailed how-to and FAQ for EndNote citation management software, the desktop version.
• EndNote Basic EndNote Basic is an online citation management program that is freely available for all Purdue users. This guide highlights how-to, key functions, and FAQ, as well as differences between the desktop and online versions of this product.
• Zotero Zotero is a free and open, web-based citation management program. This guide provides info on getting started and carrying out key functions, for students and instructors. It also includes video tutorials.

Avoid Plagiarism

• Types of Plagiarism Plagiarism.org presents Plagiarism 101: What is Plagiarism?
• Citing Sources Plagiarism.org's useful guide to everything about citing sources.
• Avoiding Plagiarism Tips on how to summarize, paraphrase, and quote sources without plagiarizing from the Purdue OWL. Use the links on the left to navigate.
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Academic Referencing: How to Cite a Research Paper

Learning how to conduct accurate, discipline-specific academic research can feel daunting at first. But, with a solid understanding of the reasoning behind why we use academic citations coupled with knowledge of the basics, you’ll learn how to cite sources with accuracy and confidence.

When it comes to academic research, citing sources correctly is arguably as important as the research itself. "Your instructors are expecting your work to adhere to these professional standards," said Amanda Girard , research support manager of Shapiro Library at Southern New Hampshire University (SNHU).

With Shapiro Library for the past three years, Girard manages the library’s research support services, which includes SNHU’s 24/7 library chat and email support. She holds an undergraduate degree in professional writing and a graduate degree in library and information science. She said that accurate citations show that you have done your research on a topic and are knowledgeable about current ideas from those actively working in the field.

In other words, when you cite sources according to the academic style of your discipline, you’re giving credit where credit is due.

Why Cite Sources?

Citing sources properly ensures you’re following high academic and professional standards for integrity and ethics.

“When you cite a source, you can ethically use others’ research. If you are not adequately citing the information you claim in your work, it would be considered plagiarism ,” said Shannon Geary '16 , peer tutor at SNHU.

Geary has an undergraduate degree in communication  from SNHU and has served on the academic support team for close to 2 years. Her job includes helping students learn how to conduct research  and write academically.

“In academic writing, it is crucial to state where you are receiving your information from,” she said. “Citing your sources ensures that you are following academic integrity standards.”

According to Geary and Girard, several key reasons for citing sources are:

• Access. Citing sources points readers to original sources. If anyone wants to read more on your topic, they can use your citations as a roadmap to access the original sources.
• Attribution. Crediting the original authors, researchers and experts  shows that you’re knowledgeable about current ideas from those actively working in the field and adhering to high ethical standards, said Girard.
• Clarity. “By citing your sources correctly, your reader can follow along with your research,” Girard said.
• Consistency. Adhering to a citation style provides a framework for presenting ideas within similar academic fields. “Consistent formatting makes accessing, understanding and evaluating an author's findings easier for others in related fields of study,” Geary said.
• Credibility. Proper citation not only builds a writer's authority but also ensures the reliability of the work, according to Geary.

Ultimately, citing sources is a formalized way for you to share ideas as part of a bigger conversation among others in your field. It’s a way to build off of and reference one another’s ideas, Girard said.

How Do You Cite an Academic Research Paper?

Any time you use an original quote or paraphrase someone else’s ideas, you need to cite that material, according to Geary.

“The only time we do not need to cite is when presenting an original thought or general knowledge,” she said.

While the specific format for citing sources can vary based on the style used, several key elements are always included, according to Girard. Those are:

• Title of source
• Type of source, such as a journal, book, website or periodical

By giving credit to the authors, researchers and experts you cite, you’re building credibility. You’re showing that your argument is built on solid research.

“Proper citation not only builds a writer's authority but also ensures the reliability of the work,” Geary said. “Properly formatted citations are a roadmap for instructors and other readers to verify the information we present in our work.”

Common Citation Styles in Academic Research

Certain disciplines adhere to specific citation standards because different disciplines prioritize certain information and research styles . The most common citation styles used in academic research, according to Geary, are:

• American Psychological Association, known as APA . This style is standard in the social sciences such as psychology, education and communication. “In these fields, research happens rapidly, which makes it exceptionally important to use current research,” Geary said.
• Modern Language Association, known as MLA . This style is typically used in literature and humanities because of the emphasis on literature analysis. “When citing in MLA, there is an emphasis on the author and page number, allowing the audience to locate the original text that is being analyzed easily,” Geary said.
• Chicago Manual of Style, known as Chicago . This style is typically used in history, business and sometimes humanities. “(Chicago) offers flexibility because of the use of footnotes, which can be seen as less distracting than an in-text citation,” Geary said.

The benefit of using the same format as other researchers within a discipline is that the framework of presenting ideas allows you to “speak the same language,” according to Girard.

APA Citation for College: A Brief Overview

Are you writing a paper that needs to use APA citation, but don’t know what that means? No worries. You’ve come to the right place.

How to Use MLA Formatting: A Brief Overview

Are you writing a paper for which you need to know how to use MLA formatting, but don’t know what that means? No worries. You’ve come to the right place.

How to Ensure Proper Citations

Keeping track of your research as you go is one of the best ways to ensure you’re citing appropriately and correctly based on the style that your academic discipline uses.

“Through careful citation, authors ensure their audience can distinguish between borrowed material and original thoughts, safeguarding their academic reputation and following academic honesty policies,” Geary said.

Some tips that she and Girard shared to ensure you’re citing sources correctly include:

• Keep track of sources as you work. Writers should keep track of their sources every time an idea is not theirs, according to Geary. “You don’t want to find the perfect research study and misplace its source information, meaning you’d have to omit it from your paper,” she said.
• Practice. Even experienced writers need to check their citations before submitting their work. “Citing requires us to pay close attention to detail, so always start your citation process early and go slow to ensure you don’t make mistakes,” said Geary. In time, citing sources properly becomes faster and easier.
• Use an Online Tool . Geary recommends the Shapiro Library citation guide . You can find sample papers, examples of how to cite in the different academic styles and up-to-date citation requirements, along with information and examples for APA, MLA and Chicago style citations.
• Work with a Tutor. A tutor can offer support along with tips to help you learn the process of academic research. Students at SNHU can connect with free peer tutoring through the Academic Support tab in their online courses, though many colleges and universities offer peer tutoring.

Find Your Program

How to cite a reference in academic writing.

A citation consists of two pieces: an in-text citation that is typically short and a longer list of references or works cited (depending on the style used) at the end of the paper.

“In-text citations immediately acknowledge the use of external source information and its exact location,” Geary said. While each style uses a slightly different format for in-text citations that reference the research, you may expect to need the page number, author’s name and possibly date of publication in parentheses at the end of a sentence or passage, according to Geary.

A longer entry listing the complete details of the resource you referenced should also be included on the references or works cited page at the end of the paper. The full citation is provided with complete details of the source, such as author, title, publication date and more, Geary said.

The two-part aspect of citations is because of readability. “You can imagine how putting the full citation would break up the flow of a paper,” Girard said. “So, a shortened version is used (in the text).”

“For example, if an in-text citation reads (Jones, 2024), the reader immediately knows that the ideas presented are coming from Jones’s work, and they can explore the comprehensive citation on the final page,” she said.

The in-text citation and full citation together provide a transparent trail of the author's process of engaging with research.

“Their combined use also facilitates further research by following a standardized style (APA, MLA, Chicago), guaranteeing that other scholars can easily connect and build upon their work in the future,” Geary said.

Developing and demonstrating your research skills, enhancing your work’s credibility and engaging ethically with the intellectual contributions of others are at the core of the citation process no matter which style you use.

A degree can change your life. Choose your program  from 200+ SNHU degrees that can take you where you want to go.

A former higher education administrator, Dr. Marie Morganelli is a career educator and writer. She has taught and tutored composition, literature, and writing at all levels from middle school through graduate school. With two graduate degrees in English language and literature, her focus — whether teaching or writing — is in helping to raise the voices of others through the power of storytelling. Connect with her on LinkedIn .

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About southern new hampshire university.

SNHU is a nonprofit, accredited university with a mission to make high-quality education more accessible and affordable for everyone.

Founded in 1932, and online since 1995, we’ve helped countless students reach their goals with flexible, career-focused programs . Our 300-acre campus in Manchester, NH is home to over 3,000 students, and we serve over 135,000 students online. Visit our about SNHU  page to learn more about our mission, accreditations, leadership team, national recognitions and awards.

In-Text Citations

In scholarly writing, it is essential to acknowledge how others contributed to your work. By following the principles of proper citation, writers ensure that readers understand their contribution in the context of the existing literature—how they are building on, critically examining, or otherwise engaging the work that has come before.

APA Style provides guidelines to help writers determine the appropriate level of citation and how to avoid plagiarism and self-plagiarism.

We also provide specific guidance for in-text citation, including formats for interviews, classroom and intranet sources, and personal communications; in-text citations in general; and paraphrases and direct quotations.

Academic Writer ®

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Course Adoption

Teaching APA Style? Become a course adopter of the 7th edition Publication Manual

Instructional Aids

Guides, checklists, webinars, tutorials, and sample papers for anyone looking to improve their knowledge of APA Style

Poster Samples

Looking at samples of real student posters can help you generate ideas and define your goals. As you get started, it may be helpful to look at examples of finished posters.

Below are a number of sample posters created by UT undergraduates. There is a brief discussion of each poster highlighting its greatest strengths and areas where there is room for improvement.

• More than one type of visual aid
• Logical order for sections
• Acknowledgments

Room for improvement

• Background may be distracting, or detract from content
• Sections and images are not aligned
• Too many visual components clutter poster

• White space
• Legible text and graphics
• Reports preliminary results
• All participants listed as authors, with affiliations provided
• Lacks Citations and Acknowledgements
• Labeling of images/graphics
• Inconsistent text alignment
• Color-saturated background

• Clearly defined research questions
• Effective use of visual aids
• Clear organizational structure
• Bullets break up text
• Technical language/undefined acronyms (accessible to limited audience)
• Narrow margins within text boxes
• Too many thick borders around boxes
• Uses UT seal instead of college or university wordmark

• Clear introductory material
• Use of bullet points
• Logical flow
• Color-coding in graphics
• Lacks references section
• May not be accessible to all audiences (some technical language)
• No need for borders around sections (the blue headers are sufficient)

• Compelling visual aids
• Strategic use of color
• Clear sections
• Inconsistent fonts in body text
• Abstract section mislabeled
• Bullet points are great, but only if they’re used judiciously

• Parameters of study well defined
• Clearly defined research question
• Simple color scheme
• Use of white space
• Discussion of Results
• Minor formatting misalignments
• Unauthorized use of UT seal (use wordmark instead)

• Venn diagram in discussion
• Consistent graphics
• Multiple types of visual aids
• Light text on dark background
• Color backgrounds should be avoided, especially dark ones
• Unlabeled, non-credited photos

• Easy to read
• Use of shapes, figures, and bullets to break up text
• Compelling title (and title font size)
• Clean overall visual impression
• Many sections without a clear flow between them
• Lacks acknowledgements

• Use of images/graphics
• Clear title
• Accessible but professional tone
• Length/density of text blocks
• Tiny photo citations
• Connections between images and descriptive text
• Vertical boxes unnecessary

• Compelling title
• Font sizes throughout (hierarchy of text)
• Simple graphics
• Lacks clear Background section
• Relationship of Findings and Conclusion to Research questions

• Use of visual aids
• Uneven column width
• Center-justfied body text
• Lacks “Methods” section

• Use of bullets
• Too many different font styles (serif and sans serif, bold and normal)
• Concise interpretation of graphics

• Accessible visual structure
• Clear, simple graphics
• Fonts and font sizes
• Analysis of graphic data
• Discussion of significance
• Lacks author’s affiliation and contact information

• Balance among visuals, text and white space
• Data presented in visual format (SmartArt)
• Accesible to many audiences (simple enough for general audience, but enough methodological detail for experts)
• Some more editing needed
• When targeting an expert audience (as in the methodology section), should also report statistics ( r, p, t, F, etc.)

• Large, clear title
• Creative adaptation of sections
• Use of lists (rather than paragraphs)
• Accessible to diverse audience
• Connection between visuals (sheet music) and content

• Strategic use of color for section headers
• Labeling and citation of images
• Accessible to a broad audience
• Wide margins around poster edges
• Slightly text-heavy
• Data referenced (“Methodology”) but not discussed

What is my next step?

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