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APA (7th Edition) Referencing Guide

• Information for EndNote Users
• Authors - Numbers, Rules and Formatting

Everything must match!

Types of citations, in-text citations, quoting, summarising and paraphrasing, example text with in-text referencing, slightly tricky in-text citations, organisation as an author, secondary citation (works referred to in other works), what do i do if there are no page numbers.

• Reference List
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• In-Text Citation Checklist Checklist provided by APA to help make sure your in-text citations are correct.

There are two basic ways to cite someone's work in text.

In narrative citations , the authors are part of the sentence - you are referring to them by name. For example:

Becker (2013) defined gamification as giving the mechanics of principles of a game to other activities.

Cho and Castañeda (2019) noted that game-like activities are frequently used in language classes that adopt mobile and computer technologies.

In parenthetical citations , the authors are not mentioned in the sentence, just the content of their work. Place the citation at the end of the sentence or clause where you have used their information. The author's names are placed in the brackets (parentheses) with the rest of the citation details:

Gamification involves giving the mechanics or principles of a game to another activity (Becker, 2013).

Increasingly, game-like activities are frequently used in language classes that adopt mobile and computer technologies (Cho & Castañeda, 2019).

Using references in text

For APA, you use the authors' surnames only and the year in text. If you are using a direct quote, you will also need to use a page number.

Narrative citations:

If an in-text citation has the authors' names as part of the sentence (that is, outside of brackets) place the year and page numbers in brackets immediately after the name, and use 'and' between the authors' names:  Jones and Smith (2020, p. 29)

Parenthetical citations:

If an in-text citation has the authors' names in brackets use "&" between the authors' names :  (Jones & Smith, 2020, p. 29).

Note: Some lecturers want page numbers for all citations, while some only want page numbers with direct quotes. Check with your lecturer to see what you need to do for your assignment. If the direct quote starts on one page and finishes on another, include the page range (Jones & Smith, 2020, pp. 29-30).

1 author

Smith (2020) found that "the mice disappeared within minutes" (p. 29).

The author stated "the mice disappeared within minutes" (Smith, 2020, p. 29).

Jones and Smith (2020) found that "the mice disappeared within minutes" (p. 29).

The authors stated "the mice disappeared within minutes" (Jones & Smith, 2020, p. 29).

For 3 or more authors , use the first author and "et al." for all in-text citations

Green et al.'s (2019) findings indicated that the intervention was not based on evidence from clinical trials.

It appears the intervention was not based on evidence from clinical trials (Green et al., 2019).

If you cite more than one work in the same set of brackets in text , your citations will go in the same order in which they will appear in your reference list (i.e. alphabetical order, then oldest to newest for works by the same author) and be separated by a semi-colon. E.g.:

• (Corbin, 2015; James & Waterson, 2017; Smith et al., 2016).
• (Corbin, 2015; 2018)
• (Queensland Health, 2017a; 2017b)
• Use only the   surnames   of your authors   in text   (e.g., Smith & Brown, 2014) - however, if you have two authors with the same surname who have published in the same year, then you will need to use their initials to distinguish between the two of them (e.g., K. Smith, 2014; N. Smith, 2014).   Otherwise, do not use initials in text .

If your author isn't an "author".

Whoever is in the "author" position of the refence in the references list is treated like an author in text. So, for example, if you had an edited book and the editors of the book were in the "author" position at the beginning of the reference, you would treat them exactly the same way as you would an author - do not include any other information. The same applies for works where the "author" is an illustrator, producer, composer, etc.

• Summarising
• Paraphrasing

It is always a good idea to keep direct quotes to a minimum. Quoting doesn't showcase your writing ability - all it shows is that you can read (plus, lecturers hate reading assignments with a lot of quotes).

You should only use direct quotes if the exact wording is important , otherwise it is better to paraphrase.

If you feel a direct quote is appropriate, try to keep only the most important part of the quote and avoid letting it take up the entire sentence - always start or end the sentence with your own words to tie the quote back into your assignment. Long quotes (more than 40 words) are called "block quotes" and are rarely used in most subject areas (they mostly belong in Literature, History or similar subjects). Each referencing style has rules for setting out a block quote. Check with your style guide .

It has been observed that "pink fairy armadillos seem to be extremely susceptible to stress" (Superina, 2011, p. 6).

NB! Most referencing styles will require a page number to tell readers where to find the original quote.

It is a type of paraphrasing, and you will be using this frequently in your assignments, but note that summarising another person's work or argument isn't showing how you make connections or understand implications. This is preferred to quoting, but where possible try to go beyond simply summarising another person's information without "adding value".

And, remember, the words must be your own words . If you use the exact wording from the original at any time, those words must be treated as a direct quote.

All information must be cited, even if it is in your own words.

Superina (2011) observed a captive pink fairy armadillo, and noticed any variation in its environment could cause great stress.

NB! Some lecturers and citation styles want page numbers for everything you cite, others only want page numbers for direct quotes. Check with your lecturer.

Paraphrasing often involves commenting about the information at the same time, and this is where you can really show your understanding of the topic. You should try to do this within every paragraph in the body of your assignment.

When paraphrasing, it is important to remember that using a thesaurus to change every other word isn't really paraphrasing. It's patchwriting , and it's a kind of plagiarism (as you are not creating original work).

Use your own voice! You sound like you when you write - you have a distinctive style that is all your own, and when your "tone" suddenly changes for a section of your assignment, it looks highly suspicious. Your lecturer starts to wonder if you really wrote that part yourself. Make sure you have genuinely thought about how *you* would write this information, and that the paraphrasing really is in your own words.

Always cite your sources! Even if you have drawn from three different papers to write this one sentence, which is completely in your own words, you still have to cite your sources for that sentence (oh, and excellent work, by the way).

Captive pink fairy armadillos do not respond well to changes in their environment and can be easily stressed (Superina, 2011).

NB! Some lecturers and citation styles want page numbers for all citations, others only want them for direct quotes. Check with your lecturer.

This example paragraph contains mouse-over text. Run your mouse over the paragraph to see notes on formatting.

Excerpt from "The Big Fake Essay"

You can read the entire Big Fake Essay on the Writing Guide. It includes more details about academic writing and the formatting of essays.

• The Big Fake Essay
• Academic Writing Workshop

When you have multiple authors with the same surname who published in the same year:

If your authors have different initials, then include the initials:

As A. Smith (2016) noted...

...which was confirmed by J.G. Smith's (2016) study.

(A. Smith, 2016; J. G. Smith, 2016).

If your authors have the same initials, then include the name:

As Adam Smith noted...

...which was confirmed by Amy Smith's (2016) study.

(Adam Smith, 2016; Amy Smith, 2016).

Note: In your reference list, you would include the author's first name in [square brackets] after their initials:

Smith, A. [Adam]. (2016)...

Smith, A. [Amy]. (2016)...

When you have multiple works by the same author in the same year:

In your reference list, you will have arranged the works alphabetically by title (see the page on Reference Lists for more information). This decides which reference is "a", "b", "c", and so on. You cite them in text accordingly:

Asthma is the most common disease affecting the Queensland population (Queensland Health, 2017b). However, many people do not know how to manage their asthma symptoms (Queensland Health, 2017a).

When you have multiple works by the same author in different years:

Asthma is the most common disease affecting the Queensland population (Queensland Health, 2017, 2018). 

When you do not have an author, and your reference list entry begins with the title:

Use the title in place of the author's name, and place it in "quotation marks" if it is the title of an article or book chapter, or in italics if the title would go in italics in your reference list:

During the 2017 presidential inauguration, there were some moments of awkwardness ("Mrs. Obama Says ‘Lovely Frame’", 2018).

Note: You do not need to use the entire title, but a reasonable portion so that it does not end too abruptly - "Mrs. Obama Says" would be too abrupt, but the full title "Mrs. Obama Says 'Lovely Frame' in Box During Awkward Handoff" is unecessarily long. You should also use title case for titles when referring to them in the text of your work.

If there are no page numbers, you can include any of the following in the in-text citation:

• "On Australia Day 1938 William Cooper ... joined forces with Jack Patten and William Ferguson ... to hold a Day of Mourning to draw attention to the losses suffered by Aboriginal people at the hands of the whiteman" (National Museum of Australia, n.d., para. 4).
• "in 1957 news of a report by the Western Australian government provided the catalyst for a reform movement" (National Museum of Australia, n.d., The catalyst for change section, para. 1)
• "By the end of this year of intense activity over 100,000 signatures had been collected" (National Museum of Australia, n.d., "petition gathering", para. 1).

When you are citing a classical work, like the Bible or the Quran:

References to works of scripture or other classical works are treated differently to regular citations. See the APA Blog's entry for more details:

Happy Holiday Citing: Citation of Classical Works . (Please note, this document is from the 6th edition of APA).

In text citation:

If the name of the organisation first appears in a narrative citation, include the abbreviation before the year in brackets, separated with a comma. Use the official acronym/abreviation if you can find it. Otherwise check with your lecturer for permission to create your own acronyms.

Australian Bureau of Statistics (ABS, 2013) shows that...

The Queensland Department of Education (DoE, 2020) encourages students to... (please note, Queensland isn't part of the department's name, it is used in the sentence to provide clarity)

If the name of the organisation first appears in a citation in brackets, include the abbreviation in square brackets.

(Australian Bureau of Statistics [ABS], 2013)

(Department of Education [DoE], 2020)

In the second and subsequent citations, only include the abbreviation or acronym

ABS  (2013) found that ...

DoE (2020) instructs teachers to...

This is disputed ( ABS , 2013).

Resources are designed to support "emotional learning pedagogy" (DoE, 2020)

In the reference list:

Use the full name of the organisation in the reference list.

Australian Institute of Health and Welfare. (2017).  Australia's welfare 2017 . https://www.aihw.gov.au/reports/australias-welfare/australias-welfare-2017/contents/table-of-contents

Department of Education. (2020, April 22). Respectful relationships education program . Queensland Government. https://education.qld.gov.au/curriculum/stages-of-schooling/respectful-relationships

Academically, it is better to find the original source and reference that.

If you do have to quote a secondary source:

• In the text you must cite the original author of the quote and the year the original quote was written as well as the source you read it in. If you do not know the year the original citation was written, omit the year.
• In the reference list you only list the source that you actually read.

Wembley (1997, as cited in Olsen, 1999) argues that impending fuel shortages ...

Wembley claimed that "fuel shortages are likely" (1997, as cited in Olsen, 1999, pp. 10-12).

Some have noted that fuel shortages are probable in the future (Wembley, 1997, as cited in Olsen, 1999).

Olsen, M. (1999).  My career.  Gallimard.

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APA In-Text Citations and Sample Essay 7th Edition

This handout focuses on how to format in-text citations in APA.

Proper citation of sources is a two-part process . You must first cite each source in the body of your essay; these citations within the essay are called in-text citations . You MUST cite all quoted, paraphrased, or summarized words, ideas, and facts from sources. Without in-text citations, you are technically in danger of plagiarism, even if you have listed your sources at the end of the essay.

In-text citations point the reader to the sources’ information on the references page. The in-text citation typically includes the author's last name and the year of publication. If you use a direct quote, the page number is also provided.

More information can be found on p. 253 of the 7th edition of the Publication Manual of the American Psychological Association.

Citation Rules

Direct quotation with the author named in the text.

Heinze and Lu (2017) stated, “The NFL shifted its responses to institutional change around concussions significantly as the field itself evolved” (p. 509).

Note: The year of publication is listed in parenthesis after the names of the authors, and the page number is listed in parenthesis at the end of the quote.

Direct Quotation without the Author Named in the Text

As the NFL developed as an organization, it “shifted its responses to institutional change around concussions significantly” (Heinze & Lu, 2017, p. 509).

Note: At the end of the quote, the names of the authors, year of publication, and page number are listed in parenthesis.

Paraphrase with 1-2 Authors

As the NFL developed as an organization, its reactions toward concussions also transformed (Heinze & Lu, 2017).

Note: For paraphrases, page numbers are encouraged but not required.

Paraphrase with 3 or More Authors

To work toward solving the issue of violence in prisons begins with determining aspects that might connect with prisoners' violent conduct (Thomson et al., 2019).

Direct Quotation without an Author

The findings were astonishing "in a recent study of parent and adult child relationships" ("Parents and Their Children," 2007, p. 2).

Note: Since the author of the text is not stated, a shortened version of the title is used instead.

Secondary Sources

When using secondary sources, use the phrase "as cited in" and cite the secondary source on the References page.

In 1936, Keynes said, “governments should run deficits when the economy is slow to avoid unemployment” (as cited in Richardson, 2008, p. 257).

Long (Block) Quotations

When using direct quotations of 40 or more words, indent five spaces from the left margin without using quotation marks. The final period should come before the parenthetical citation.

At Meramec, an English department policy states:

To honor and protect their own work and that of others, all students must give credit to proprietary sources that are used for course work. It is assumed that any information that is not documented is either common knowledge in that field or the original work of that student. (St. Louis Community College, 2001, p. 1)

Website Citations

If citing a specific web document without a page number, include the name of the author, date, title of the section, and paragraph number in parentheses:

In America, “Two out of five deaths among U.S. teens are the result of a motor vehicle crash” (National Center for Injury Prevention and Control, 2004, Overview section, para. 1).

Here is a print-friendly version of this content.

Learn more about the APA References page by reviewing this handout .

For information on STLCC's academic integrity policy, check out this webpage .

For additional information on APA, check out STLCC's LibGuide on APA .

Sample Essay

A sample APA essay is available at this link .

Penn State University Libraries

Apa quick citation guide.

• In-text Citation
• Citing Generative AI
• Citing Web Pages and Social Media
• Citing Articles
• Citing Books
• Citing Business Reports
• Other Formats
• APA Style Quiz

Using In-text Citation

Include an in-text citation when you refer to, summarize, paraphrase, or quote from another source. For every in-text citation in your paper, there must be a corresponding entry in your reference list.

APA in-text citation style uses the author's last name and the year of publication, for example: (Field, 2005). For direct quotations, include the page number as well, for example: (Field, 2005, p. 14). For sources such as websites and e-books that have no page numbers , use a paragraph number, for example: (Field, 2005, para. 1). More information on direct quotation of sources without pagination is given on the APA Style and Grammar Guidelines web page.

Example paragraph with in-text citation

A few researchers in the linguistics field have developed training programs designed to improve native speakers' ability to understand accented speech (Derwing et al., 2002; Thomas, 2004). Their training techniques are based on the research described above indicating that comprehension improves with exposure to non-native speech.   Derwing et al. (2002) conducted their training with students preparing to be social workers, but note that other professionals who work with non-native speakers could benefit from a similar program.

Derwing, T. M., Rossiter, M. J., & Munro, M. J. (2002). Teaching native speakers to listen to foreign-accented speech.  Journal of Multilingual and Multicultural Development , 23 (4), 245-259.

Thomas, H. K. (2004).  Training strategies for improving listeners' comprehension of foreign-accented speech  (Doctoral dissertation). University of Colorado, Boulder.

Citing Web Pages In Text

Cite web pages in text as you would any other source, using the author and date if known. Keep in mind that the author may be an organization rather than a person. For sources with no author, use the title in place of an author.

For sources with no date use n.d. (for no date) in place of the year: (Smith, n.d.). For more information on citations for sources with no date or other missing information see the page on missing reference information on the APA Style and Grammar Guidelines web page. 

Below are examples of using in-text citation with web pages.

Web page with author:

In-text citation

Heavy social media use can be linked to depression and other mental disorders in teens (Asmelash, 2019).

Reference entry

Asmelash, L. (2019, August 14). Social media use may harm teens' mental health by disrupting positive activities, study says . CNN. https://www.cnn.com/2019/08/13/health/social-media-mental-health-trnd/index.html

Web page with organizational author:

More than 300 million people worldwide are affected by depression (World Health Organization, 2018).

World Health Organization. (2018, March 22).  Depression . https://www.who.int/en/news-room/fact-sheets/detail/depression

Web page with no date:

Establishing regular routines, such as exercise, can help survivors of disasters recover from trauma (American Psychological Association [APA], n.d.).

American Psychological Association. (n.d.). Recovering emotionally from disaste r. http://www.apa.org/helpcenter/recovering-disasters.aspx

General Guidelines

In-text references should immediately follow the title, word, or phrase to which they are directly relevant, rather than appearing at the end of long clauses or sentences. In-text references should always precede punctuation marks. Below are examples of using in-text citation.

Author's name in parentheses:

One study found that the most important element in comprehending non-native speech is familiarity with the topic (Gass & Varonis, 1984).

Author's name part of narrative:

Gass and Varonis (1984) found that the most important element in comprehending non-native speech is familiarity with the topic.

Group as author: First citation: (American Psychological Association [APA], 2015) Subsequent citation: (APA, 2015)

Multiple works: (separate each work with semi-colons)

Research shows that listening to a particular accent improves comprehension of accented speech in general (Gass & Varonis, 1984; Krech Thomas, 2004).

Direct quote: (include page number and place quotation marks around the direct quote)

One study found that “the listener's familiarity with the topic of discourse greatly facilitates the interpretation of the entire message” (Gass & Varonis, 1984, p. 85).

Gass and Varonis (1984) found that “the listener’s familiarity with the topic of discourse greatly facilitates the interpretation of the entire message” (p. 85).

Note:  For direct quotations of more than 40 words , display the quote as an indented block of text without quotation marks and include the authors’ names, year, and page number in parentheses at the end of the quote. For example:

This suggests that familiarity with nonnative speech in general, although it is clearly not as important a variable as topic familiarity, may indeed have some effect. That is, prior experience with nonnative speech, such as that gained by listening to the reading, facilitates comprehension. (Gass & Varonis, 1984, p. 77)

Works by Multiple Authors

APA style has specific rules for citing works by multiple authors. Use the following guidelines to determine how to correctly cite works by multiple authors in text. For more information on citing works by multiple authors see the APA Style and Grammar Guidelines page on in-text citation .

Note: When using multiple authors' names as part of your narrative, rather than in parentheses, always spell out the word and. For multiple authors' names within a parenthetic citation, use &.

One author: (Field, 2005)

Two authors: (Gass & Varonis, 1984)

Three or more authors:   (Tremblay et al., 2010)

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How to Write an Academic Essay with References and Citations

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Written by  Scribendi

If you're wondering how to write an academic essay with references, look no further. In this article, we'll discuss how to use in-text citations and references, including how to cite a website, how to cite a book, and how to cite a Tweet, according to various style guides.

You might need to cite sources when writing a paper that references other sources. For example, when writing an essay, you may use information from other works, such as books, articles, or websites. You must then inform readers where this information came from. Failure to do so, even accidentally, is plagiarism—passing off another person's work as your own.

You can avoid plagiarism and show readers where to find information by using citations and references. 

Citations tell readers where a piece of information came from. They take the form of footnotes, endnotes, or parenthetical elements, depending on your style guide. In-text citations are usually placed at the end of a sentence containing the relevant information. 

A reference list , bibliography, or works cited list at the end of a text provides additional details about these cited sources. This list includes enough publication information allowing readers to look up these sources themselves.

Referencing is important for more than simply avoiding plagiarism. Referring to a trustworthy source shows that the information is reliable. Referring to reliable information can also support your major points and back up your argument. 

Learning how to write an academic essay with references and how to use in-text citations will allow you to cite authors who have made similar arguments. This helps show that your argument is objective and not entirely based on personal biases.

How Do You Determine Which Style Guide to Use?

Often, a professor will assign a style guide. The purpose of a style guide is to provide writers with formatting instructions. If your professor has not assigned a style guide, they should still be able to recommend one. 

If you are entirely free to choose, pick one that aligns with your field (for example, APA is frequently used for scientific writing). 

Some of the most common style guides are as follows:

AP style for journalism

Chicago style for publishing

APA style for scholarly writing (commonly used in scientific fields)

MLA style for scholarly citations (commonly used in English literature fields)

Some journals have their own style guides, so if you plan to publish, check which guide your target journal uses. You can do this by locating your target journal's website and searching for author guidelines.

How Do You Pick Your Sources?

When learning how to write an academic essay with references, you must identify reliable sources that support your argument. 

As you read, think critically and evaluate sources for:

Objectivity

Keep detailed notes on the sources so that you can easily find them again, if needed.

Tip: Record these notes in the format of your style guide—your reference list will then be ready to go.

How to Use In-Text Citations in MLA

An in-text citation in MLA includes the author's last name and the relevant page number: 

(Author 123)

How to Cite a Website in MLA

Here's how to cite a website in MLA:

Author's last name, First name. "Title of page."

Website. Website Publisher, date. Web. Date

retrieved. <URL>

With information from a real website, this looks like:

Morris, Nancy. "How to Cite a Tweet in APA,

Chicago, and MLA." Scribendi. Scribendi

Inc., n.d. Web. 22 Dec. 2021.

<https://www.scribendi.com/academy/articles/how_to_cite_a_website.en.html>

How Do You Cite a Tweet in MLA ?

MLA uses the full text of a short Tweet (under 140 characters) as its title. Longer Tweets can be shortened using ellipses. 

MLA Tweet references should be formatted as follows:

@twitterhandle (Author Name). "Text of Tweet." Twitter, Date Month, Year, time of

publication, URL.

With information from an actual Tweet, this looks like:

@neiltyson (Neil deGrasse Tyson). "You can't use reason to convince anyone out of an

argument that they didn't use reason to get into." Twitter, 29 Sept. 2020, 10:15 p.m.,

https://twitter.com/neiltyson/status/1311127369785192449 .

How to Cite a Book in MLA

Here's how to cite a book in MLA:

Author's last name, First name. Book Title. Publisher, Year.

With publication information from a real book, this looks like:

Montgomery, L.M. Rainbow Valley. Frederick A. Stokes Company, 1919.

How to Cite a Chapter in a Book in MLA

Author's last name, First name. "Title of Chapter." Book Title , edited by Editor Name,

Publisher, Year, pp. page range.

With publication information from an actual book, this looks like:

Ezell, Margaret J.M. "The Social Author: Manuscript Culture, Writers, and Readers." The

Broadview Reader in Book History , edited by Michelle Levy and Tom Mole, Broadview

Press, 2015,pp. 375–394.

How to  Cite a Paraphrase in MLA

You can cite a paraphrase in MLA exactly the same way as you would cite a direct quotation. 

Make sure to include the author's name (either in the text or in the parenthetical citation) and the relevant page number.

How to Use In-Text Citations in APA

In APA, in-text citations include the author's last name and the year of publication; a page number is included only if a direct quotation is used: 

(Author, 2021, p. 123)

How to Cite a Website in APA

Here's how to cite a website in APA:

Author, A. A., & Author, B. B. (Year, Month. date of publication). Title of page. https://URL

Morris, N. (n.d.). How to cite a Tweet in APA, Chicago, and MLA. 

https://www.scribendi.com/academy/articles/how_to_cite_a_website.en.html       

Tip: Learn more about how to write an academic essay with  references to websites .

How Do You  Cite a Tweet in APA ?

APA refers to Tweets using their first 20 words. 

Tweet references should be formatted as follows:

Author, A. A. [@twitterhandle). (Year, Month. date of publication). First 20 words of the

Tweet. [Tweet] Twitter. URL

When we input information from a real Tweet, this looks like:

deGrasse Tyson, N. [@neiltyson]. (2020, Sept. 29). You can't use reason to convince anyone

out of an argument that they didn't use reason to get into. [Tweet] Twitter.

https://twitter.com/neiltyson/status/1311127369785192449

How to Cite a Book in APA

Here's how to cite a book in APA:   

Author, A. A. (Year). Book title. Publisher.

For a real book, this looks like:

Montgomery, L. M. (1919). Rainbow valley.

Frederick A. Stokes Company.

How to Cite a Chapter in a Book in APA

Author, A. A. (Year). Chapter title. In Editor Name (Ed.), Book Title (pp. page range).

With information from a real book, this looks like:

Ezell, M. J. M. (2014). The social author: Manuscript culture, writers, and readers. In

Michelle Levy and Tom Mole (Eds.), The Broadview Reader in Book History (pp. 375–

394). Broadview Press.

Knowing how to cite a book and how to cite a chapter in a book correctly will take you a long way in creating an effective reference list.

How to Cite a Paraphrase in APA

You can cite a paraphrase in APA the same way as you would cite a direct quotation, including the author's name and year of publication. 

In APA, you may also choose to pinpoint the page from which the information is taken.

Referencing is an essential part of academic integrity. Learning how to write an academic essay with references and how to use in-text citations shows readers that you did your research and helps them locate your sources.

Learning how to cite a website, how to cite a book, and how to cite a paraphrase can also help you avoid plagiarism —an academic offense with serious consequences for your education or professional reputation.

Scribendi can help format your citations or review your whole paper with our Academic Editing services .

Take Your Essay from Good to Great

Hire an expert academic editor , or get a free sample, about the author.

Scribendi's in-house editors work with writers from all over the globe to perfect their writing. They know that no piece of writing is complete without a professional edit, and they love to see a good piece of writing transformed into a great one. Scribendi's in-house editors are unrivaled in both experience and education, having collectively edited millions of words and obtained numerous degrees. They love consuming caffeinated beverages, reading books of various genres, and relaxing in quiet, dimly lit spaces.

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"The Complete Beginner's Guide to Academic Writing"

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APA 7th Edition Citation Examples

• Volume and Issue Numbers
• Page Numbers
• Undated Sources
• Citing a Source Within a Source

Citing a Source within a Source

• In-Text Citations
• Academic Journals
• Encyclopedia Articles
• Book, Film, and Product Reviews
• Online Classroom Materials
• Conference Papers
• Technical + Research Reports
• Court Decisions
• Treaties and Other International Agreements
• Federal Regulations: I. The Code of Federal Regulations
• Federal Regulations: II. The Federal Register
• Executive Orders
• Charter of the United Nations
• Federal Statutes
• Dissertations and Theses
• Interviews, E-mail Messages + Other Personal Communications
• Social Media
• Business Sources
• PowerPoints
• AI: ChatGPT, etc.

Scenario: You read a 2007 article by Linhares and Brum that cites an earlier article, by Klein. You want to cite Klein's article, but you have not read Klein's article itself.

Reference list citation

Linhares, A., & Brum, P. (2007). Understanding our understanding of strategic scenarios: What role do chunks play? Cognitive Science , 31 (6), 989-1007. https://doi.org/10.1080/03640210701703725

Your Reference list will contain the article you read, by Linhares and Brum. Your Reference list will NOT contain a citation for Klein's article.

In-text citation

Klein's study (as cited in Linhares & Brum, 2007) found that...

Your in-text citation gives credit to Klein and shows the source in which you found Klein's ideas.

See  Publication Manual , p. 258.

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• Next: In-Text Citations >>
• Last Updated: Mar 18, 2024 12:55 PM
• URL: https://libguides.umgc.edu/apa-examples

University Library

Start your research.

• Research Process
• Find Background Info
• Find Sources through the Library
• Evaluate Your Info
• Cite Your Sources
• Evaluate, Write & Cite

• is the right thing to do  to give credit to those who had the idea
• shows that you have read and understand  what experts have had to say about your topic
• helps people find the sources  that you used in case they want to read more about the topic
• provides   evidence  for your arguments
• is professional and  standard practice   for students and scholars

What is a Citation?

A citation identifies for the reader the original source for an idea, information, or image that is referred to in a work.

• In the body of a paper, the  in-text citation  acknowledges the source of information used.
• At the end of a paper, the citations are compiled on a  References  or  Works Cited  list. A basic citation includes the author, title, and publication information of the source. 

From:  Lemieux  Library,  University  of Seattle 

Why Should You Cite?

Quoting Are you quoting two or more consecutive words from a source? Then the original source should be cited and the words or phrase placed in quotes. 

Paraphrasing If an idea or information comes from another source,  even if you put it in your own words , you still need to credit the source.  General vs. Unfamiliar Knowledge You do not need to cite material which is accepted common knowledge. If in doubt whether your information is common knowledge or not, cite it. Formats We usually think of books and articles. However, if you use material from web sites, films, music, graphs, tables, etc. you'll also need to cite these as well.

Plagiarism is presenting the words or ideas of someone else as your own without proper acknowledgment of the source. When you work on a research paper and use supporting material from works by others, it's okay to quote people and use their ideas, but you do need to correctly credit them. Even when you summarize or paraphrase information found in books, articles, or Web pages, you must acknowledge the original author.

Citation Style Help

Helpful links:

• MLA ,  Works Cited : A Quick Guide (a template of core elements)
• CSE  (Council of Science Editors)

For additional writing resources specific to styles listed here visit the  Purdue OWL Writing Lab

Citation and Bibliography Resources

• How to Write an Annotated Bibliography
• << Previous: Evaluate Your Info
• Next: Evaluate, Write & Cite >>

Creative Commons Attribution 3.0 License except where otherwise noted.

Land Acknowledgement

The land on which we gather is the unceded territory of the Awaswas-speaking Uypi Tribe. The Amah Mutsun Tribal Band, comprised of the descendants of indigenous people taken to missions Santa Cruz and San Juan Bautista during Spanish colonization of the Central Coast, is today working hard to restore traditional stewardship practices on these lands and heal from historical trauma.

The land acknowledgement used at UC Santa Cruz was developed in partnership with the Amah Mutsun Tribal Band Chairman and the Amah Mutsun Relearning Program at the UCSC Arboretum .

Essay Writing: In-Text Citations

• Essay Writing Basics
• Purdue OWL Page on Writing Your Thesis This link opens in a new window
• Paragraphs and Transitions
• How to Tell if a Website is Legitimate This link opens in a new window
• Formatting Your References Page
• Cite a Website
• Common Grammatical and Mechanical Errors
• Additional Resources
• Proofread Before You Submit Your Paper
• Structuring the 5-Paragraph Essay

In-text Citations

What are In-Text Citations?

You must cite (give credit) all information sources used in your essay or research paper whenever and wherever you use them.

When citing sources in the text of your paper, you must list:

● The author’s last name

● The year  the information was published.

Types of In-Text Citations: Narrative vs Parenthetical

A  narrative citation gives the author's name as part of the sentence .

• Example of a Narrative Citation: According to Edwards (2017) , a lthough Smith and Carlos's protest at the 1968 Olympics initially drew widespread criticism, it also led to fundamental reforms in the organizational structure of American amateur athletics.

A  parenthetical citation puts the source information in parentheses—first or last—but does not include it in  the narrative  flow.

• Example of a Parenthetical Citation:  Although Tommie Smith and John Carlos paid a heavy price in the immediate aftermath of the protests, they were later vindicated by society at large (Edwards, 2017) .

Full citation for this source (this belongs on the Reference Page of your research paper or essay):

Edwards, H. (2017).  The Revolt of the Black Athlete: 50th Anniversary Edition.  University of Illinois Press.

Sample In-text Citations

Note: This example is a  direct quote. It is an exact quotation directly from the text of the article. All direct quotes should appear in quotation marks: "...."

Try keeping direct quotes to a minimum in your writing. You need to show your understanding of the source material by being able to paraphrase or summarize it. 

List the author’s last name only (no initials) and the year the information was published, like this:

(Dodge, 2008 ). ( Author , Date).

IF you use a direct quote, add the page number to your citation, like this: 

( Dodge , 2008 , p. 125 ).

( Author , Date , page number )

What information should I cite in my paper/essay?

Credit these sources when you mention their information in any way: direct quotation, paraphrase, or summarize.

What should you credit?

Any information that you learned from another source, including:

● statistics

EXCEPTION: Information that is common knowledge: e.g., The Bronx is a borough of New York City.

Quick Sheet: APA 7 Citations

Quick help with apa 7 citations.

• Quick Sheet - Citing Journal Articles, Websites & Videos, and Creating In-Text Citations A quick guide to the most frequently-used types of APA 7 citations.

In-text Citation Tutorial

• Formatting In-text Citations, Full Citations, and Block Quotes In APA 7 Style This presentation will help you understand when, why, and how to use in-text citations in your APA style paper.

Download the In-text Citations presentation  (above)  for an in-depth look at how to correctly cite your sources in the text of your paper.

SIgnal Phrase Activity

Paraphrasing activity from the excelsior owl, in-text citation quiz.

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Home / Guides / Citation Guides / How to Cite Sources / How to Cite a Case Study in APA, MLA, or Chicago

How to Cite a Case Study in APA, MLA, or Chicago

When citing a case study, the format in MLA and APA is similar to that of a report, and in Chicago style, it is similar to that of a book. For all three citation styles, you will need the name of the author(s), the title of the case study, the year it was published, the publishing organization/publisher, and URL (if applicable). The templates and examples below will demonstrate how to cite a case study in MLA, APA, and Chicago styles.

Author Last Name, Author First Name.  Title of Case Study . Edition (if applicable), volume number (if applicable), Publisher, year of publication, URL without http:// or https:// (if applicable).

Hill, Linda A., et al. HCL Technologies (A). Rev. edition, Harvard Business School, 2008, www.hbs.edu/faculty/Pages/item.aspx?num=34784.

In-text Citation:

(Author Last Name(s) page #)

(Hill et al. 8)

Author Last Name, Author Initial. (Publication Year). Title of Case Study (Case # if applicable). Publishing Organization. URL

Hill, L., Khanna, T., & Stecker, E. (2008). HCL Technologies (A) (Case 408-004). Harvard Business School. https://www.hbs.edu/faculty/Pages/item.aspx?num=34784

(Author Last Name, Publication Year)

(Hill et al., 2008)

Notes-bibliography style

Author Last Name, First Name.  Title of the Case Study . Publishing City: Publishing Organization, Publication Year. URL.

Hill, Linda A., Tarun Khanna, and Emily Stecker. HCL Technologies (A).  Boston: Harvard Business School, 2008. https://www.hbs.edu/faculty/Pages/item.aspx?num=34784.

1. Author First Name Last Name, Title of the Case Study (Publishing City: Publishing Organization, Publication Year), URL.

1. Linda A. Hill, Tarun Khanna, and Emily Stecker, HCL Technologies (A) ( Boston: Harvard Business School, 2008), https://www.hbs.edu/faculty/Pages/item.aspx?num=34784.

Author-date style

Author Last Name, First Name. Publication Year. Title of the Case Study . Publishing City: Publishing Organization. URL.

Hill, Linda A., Tarun Khanna, and Emily Stecker. 2008. HCL Technologies (A).  Boston: Harvard Business School. https://www.hbs.edu/faculty/Pages/item.aspx?num=34784.

In-text citation: 

(Author Last Name Publication Date)

(Holl, Khanna, and Stecker 2008)

Citation Guides

• Annotated Bibliography
• Block Quotes
• Citation Examples
• et al Usage
• In-text Citations
• Page Numbers
• Reference Page
• Sample Paper
• APA 7 Updates
• View APA Guide
• Bibliography
• Works Cited
• MLA 8 Updates
• View MLA Guide

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Citation Basics

Harvard Referencing

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Appropriate Level of Citation

The number of sources you cite in your paper depends on the purpose of your work. For most papers, cite one or two of the most representative sources for each key point. Literature review papers, however, typically include a more exhaustive list of references.

Provide appropriate credit to the source (e.g., by using an in-text citation) whenever you do the following:

• paraphrase (i.e., state in your own words) the ideas of others
• directly quote the words of others
• refer to data or data sets
• reprint or adapt a table or figure, even images from the internet that are free or licensed in the Creative Commons
• reprint a long text passage or commercially copyrighted test item

Avoid both undercitation and overcitation. Undercitation can lead to plagiarism and/or self-plagiarism . Overcitation can be distracting and is unnecessary.

For example, it is considered overcitation to repeat the same citation in every sentence when the source and topic have not changed. Instead, when paraphrasing a key point in more than one sentence within a paragraph, cite the source in the first sentence in which it is relevant and do not repeat the citation in subsequent sentences as long as the source remains clear and unchanged.

Figure 8.1 in Chapter 8 of the Publication Manual provides an example of an appropriate level of citation.

Determining the appropriate level of citation is covered in the seventh edition APA Style manuals in the Publication Manual Section 8.1 and the Concise Guide Section 8.1

Related handouts

• In-Text Citation Checklist (PDF, 227KB)
• Six Steps to Proper Citation (PDF, 112KB)

From the APA Style blog

How to cite your own translations

If you translate a passage from one language into another on your own in your paper, your translation is considered a paraphrase, not a direct quotation.

Key takeaways from the Psi Chi webinar So You Need to Write a Literature Review

This blog post describes key tasks in writing an effective literature review and provides strategies for approaching those tasks.

How to cite a work with a nonrecoverable source

In most cases, nonrecoverable sources such as personal emails, nonarchived social media livestreams (or deleted and unarchived social media posts), classroom lectures, unrecorded webinars or presentations, and intranet sources should be cited only in the text as personal communications.

The “outdated sources” myth

The “outdated sources” myth is that sources must have been published recently, such as the last 5 to 10 years. There is no timeliness requirement in APA Style.

From COVID-19 to demands for social justice: Citing contemporary sources for current events

The guidance in the seventh edition of the Publication Manual makes the process of citing contemporary sources found online easier than ever before.

Citing classical and religious works

A classical or religious work is cited as either a book or a webpage, depending on what version of the source you are using. This post includes details and examples.

Academic Writer—APA’s essential teaching resource for higher education instructors

Academic Writer’s advanced authoring technology and digital learning tools allow students to take a hands-on approach to learning the scholarly research and writing process.

APA Style webinar on citing works in text

Attend the webinar, “Citing Works in Text Using Seventh Edition APA Style,” on July 14, 2020, to learn the keys to accurately and consistently citing sources in APA Style.

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How to Cite Sources in an Essay

By: Henrique Bertulino

Many students struggle with how to properly cite a source in their essays. According to recent studies, teaching students how to perfect this craft can lead to less plagiarism in their academic writing .

What Is a Citation in an Essay?

How to put citations in an essay, paraphrasing, parenthetical citations, note citations, how to cite sources in an essay mla, narrative citations, page numbers and chapters, general rules when using parenthetical citations or narrative citations, chicago style, formatting the reference list, basic rules for most sources, how do you cite online sources in an essay, how do you cite a source with no author, what are 3 ways to cite a source in your work, how do you credit a website in an essay, how do you cite two sources in one sentence apa, how do you cite anonymous sources in apa, how do you cite different sources with the same author, what does et al. mean in a citation.

There are numerous ways you can cite sources in an essay. Let's dive into how to add citations to an essay, the different citation styles, and when it's appropriate to use each.

A citation in an essay is a reference to the source of information you've used in your essay research . You can write citations either as in-text citations or reference list citations, otherwise known as end-of-paper citations. In-text citations are written within the text of your academic presentation or paper, referring the reader to a fuller notation. On the other hand, reference list citations are provided at the end of the presentation or paper and give all the necessary details about the source of information.

What are citations in an essay, and how should they be used? Citations are primarily used to avoid plagiarism by correctly acknowledging external sources and authors of information you've used in your work. However, there are other reasons citations are necessary for academic writing, such as:

• They help readers get more information about your ideas and find out where they came from
• Citations show the amount of research you've done
• Citations help you avoid taking the rap for someone else's bad ideas. The ideas you present may be a refinement of the original ideas presented by the authors in your sources
• Citing sources strengthens your work since you're lending outside support to your ideas

Using citations in an essay is necessary whenever you directly paraphrase, quote, or summarize the key elements of someone else's idea in your writing.

Thus, it is critical to understand how to properly cite sources in a paper.

Citing in essays gives your readers the information necessary for them to revisit your sources accurately. Some of this information includes:

• The title of the work
• Information about the author
• The date the copy with the information was published
• The name and location of the company that published the copy
• The page numbers of the information you're borrowing

Knowing how to include citations in an essay is important. If you don't know how to do this, you may not be able to gain the attention of your audience by presenting them with facts and figures.

Where do citations go in an essay? Citations are placed in-text or at the end in a reference list.

In-Text Citations For Essay

In-text citations are brief forms of reference that you include in your text's body. These citations give enough information to uniquely identify the source in your reference list. It is difficult to not find an essay with in-text citations since they’re required before you can add a reference list.

You need to understand in-text citations to know how to cite something in a paragraph.

In-text citations typically include:

• The family name of the author(s)
• Year of publication

These guidelines are used for all citations, whether it's referencing a video, journal article, or report.

How to Cite Something in An Essay In-Text

In-text citations are necessary whenever you paraphrase or quote a source in your academic writing. It is therefore important to know how to quote a source in an essay.

Quoting means that you've directly used the author's words in your source. You start and close the quotes with opening and closing quotation marks whenever you're quoting text.

Quotes should always be cited and introduced by a signal phrase. You should also indicate the page number you got the quote from in most cases. A good example is:

The example above 👆 is in APA style.

You can use an ellipsis (…) before the direct quotation to signify some text from the original text has been omitted before the quote.

In-text citations are also necessary when you're paraphrasing . Paraphrasing means using your own words to give information from a source. Providing an in-text citation, in this case, helps avoid the notion that you're taking credit for someone else's work or ideas.

If possible, you can include the page number(s) with in-text citations where you're paraphrasing. An example is:

The Different Systems of In-Text Citations

In-text citations can be written in a variety of forms. The most common ones include:

• Parenthetical citations
• Note citations

Parenthetical in-text citations take the general form of ( author , source information) . The exact details needed within the brackets differ among citation styles.

Generally, the parentheses must be included in the citation when using this form. Parenthetical citations are also known as information-prominent citations. They are used to emphasize the text or information being cited.

Where do you put citations in an essay? Parenthetical citations should immediately follow the information being cited and be included within the sentence's punctuation. Here is an example in APA style 👇:

Where to put citations in an essay? You put the source reference in a footnote or endnote with in-text note citations. Footnotes (notes at the bottom of the page) are sometimes required. However, endnotes have become the predominant form of providing note citations.

How Each Citation Style Uses the Different In-Text Citation Systems

Different citation styles use different systems for in-text citation as follows:

The MLA citation style is used mainly for humanities. It uses the parenthetical in-text citation system in the form of (Author Last Name Page Number) .

The reference must be inserted after the last quotation mark if directly quoted but before the period at the end of the sentence.

An example is:

There are some general rules MLA citation style uses when dealing with parenthetical citations.

👉 1. If there are two quotations from two different sources, the parenthetical reference associated with each should be placed as close as possible to the quotation without interfering with the flow of the sentence.

👉 2. If a paragraph has several quotations from a single source, one parenthetical citation can be placed at the end of the sentence. The page numbers should be included for each quotation, organized in the order the quotations appear in the paragraph, separated by a comma.

The quote on page 13 of the source came first in your text's paragraph, before page 18.

👉 3. You should use the general form of (Author Last, "Title Fragment" Page Number) or (Author Last, Title Fragment Page Number) if the author cited appears multiple times on the Work Cited page. You should mirror the title used in the Works Cited page in the parenthetical reference. Thus, if it is underlined on that page, it should also be underlined in the parenthetical citation.

Examples include :

👉 4. For texts with more than one author, you should use the following format for MLA parenthetical in-text citations.

Two authors:

Three authors:

More than three authors:

👉 5. If there's no author, you can use a title fragment instead to connect the use of the source and the citation of the source on the Works Cited Page. This takes the general format of ("Title Fragment" Page Number) or ( Title Fragment Page Number)

The APA citation style is used in education , psychology , and social sciences . It uses parenthetical in-text citations in the format (Author Last Name, Year of Publication) :

If you opt not to use parenthetical in-text citations in APA style, you can instead include the author and date of the work you wish to cite in the body of your writing. There are two ways you can do this. Essay citations examples:

Example one:

Example two:

This form of in-text citation is also known as author-prominent citation. That's because narrative citations emphasize the author of the work you've sourced your information from.

Narrative citations introduce variety into your writing and sound more natural in an oral presentation. However, it requires more skill to use.

Page numbers and chapters are not required in APA-style parenthetic citations. However, it is strongly recommended that you use them for the reader to have an easier time locating the information in the source document.

You can add page numbers or chapters after the year of publication. For instance:

There are a few rules governing parenthetical citations and narrative citations in APA style. These include:

👉 1. If the work you're citing has one or two authors , separate them by an ampersand in a parenthetical citation or use the word "and" in a narrative citation. All authors must be consistently mentioned in all in-text citations. An example:

Parenthetical citation :

Narrative citation :

👉 2. If your source has three or more authors , give only the first author's family name followed by "et al." after fully listing the authors in the first mention of the reference. Example:

First citation:

Subsequent citation:

👉 3. If the author is a group, company, or organization, use the full name in the first mention of the reference and then a recognizable abbreviation afterward. Example:

First parenthetical citation:

👉 4. If the source text has no author, use the first couple of words of the title in place of the author's last name. The title fragment should be in the same format and punctuation as the title on the References page.

A recent publication of Academia for the Masses (2002) states…

In "Bridging the Wealth Gap" (2019), we can see…

Chicago B citation style, used in sciences , social sciences , and humanities , uses parenthetical in-text citations in the format (Author Last Name Year of Publication, Page Number) . However, Chicago A, used in histories and humanities , uses notes citations.

With Chicago Documentation Style 1, the research sources are indicated in the text with a numerical subscript corresponding to an entry at the end of the paper. These are endnotes. In some cases, footnotes are required and allowed for referencing in-text citations.

When using endnotes for note citations, you must include a bibliography at the end of the essay. The note and bibliographic entry contain almost identical information, albeit in a different format.

The parenthetic citation used in Chicago B shares some rules with the APA format save for a few differences:

👉 1. The name may be shortened to its most basic title when the authors are a corporation or organization. However, abbreviations are not encouraged.

👉 2. Daily newspapers are rarely included in the list of References. Instead, attribution is purely given in a parenthetical citation. The general format used is: (Newspaper Name, Day Month Year of Publication, Section and Page Number) .

For example:

👉 3. Chicago Style does not specify any format when the source text has no author. However, the standard practice is to use the work's title in place of the author. The title should be in the same format as the Reference list entry.

👉 4. If the source has no publication date, as is the case with electronic sources, write "n.d." in place.

In ASA citation style, the following rules for parenthetical citation apply:

👉 1. If the author's name is used in the text, you must use parenthetical references to show the year of publication. You put this reference at the end of the sentence.

👉 2. If the author's name is not provided in the text, it should be included with the year of publication in the parenthetical reference.

👉 3. You should include page numbers in the parentheses after the year of publication, separated by a colon, with no spaces.

👉 4. In the case where there are multiple authors, the following formats should be used:

Two or three authors:

A recent study confirms this hypothesis (Will and Mary 2013).

The data from recent statistics tell a different story (Marquez, Amani, and Marcus 2021).

You should use the term et al. with no additional punctuation marks after the first author has been listed in the publication credits. For example:

👉 5. If multiple sources are cited for the same statement, the author and publication year should be distinguished from other texts using a semi-colon. The cited texts should be arranged by date or author name. This arrangement should be consistent throughout the paper.

The Turabian citation style supports two forms of writing in-text citations. These are author/date parenthetical citations or endnotes.

You may use the Chicago Style formats for endnotes and parenthetical references.

Reference List Citations

A reference list contains a list of all the sources you refer to in your writing. Typically, the reference list is provided at the end of the essay. It is included to allow the reader of an essay or piece of academic writing to find the sources for the text.

A reference list also gives credit to the authors you may have consulted for their ideas.

There are different ways you can write reference list citations based on the citation style.

Generally, all styles dictate that the reference list appears at the end of the written essay or paper. Every source you cite in your paper or essay must also appear in the references list. Inversely, each entry in your reference list must be cited in the paper.

Your references should also appear on a new page separate from the rest of the academic writing.

When writing a reference list in APA style, you need to pay close attention to punctuation, italics, indentation, and capitalization.

Other requirements, such as line spacing, vary. It's best to contact your lecturer or check your unit/assignment guide for the exact requirements.

Also, most sources follow a straightforward rule. However, sources from academic journals carry a special weight which subjects them to special rules.

The page must be labeled " References " in bold and centered at the top of the page. There should be no underlines or quotation marks on the title.

The text should also be double-spaced, just like the rest of the essay.

• You should indent all lines after the first line of each entry by one-and-a-half inches from the left margin.
• All authors' names must be inverted. That means the last names should come first.
• The authors' first and middle names should be written as initials. For instance, an author named Mary Smith Parker would be referenced as "Parker M. S."
• Have the first and middle names of all authors in a particular work, adding up to and including 20 authors, initialed. Separate the initials of each author from the next in the list using a comma. Use an ampersand (&) before the last author's name. If there are more than 20 authors, use an ellipsis after the 19th author's name, then add the final author's name without an ampersand.
• The reference list entries should be alphabetized by the last name of the first author for each source.
• List the sources in chronological order from the earliest to the latest for multiple sources written by the same author or authors listed in the same order.
• For books, chapters, articles, reports, web pages, or other sources, only capitalize the first letter of the first word in the title and subtitle, the first word after a dash or colon in the title, and proper nouns. Note, however, that the titles of academic journals use special rules.
• Italicize the title of longer works. These may be edited collections, books, names of newspapers, among others.
• For shorter works such as essays in edited collections or chapters in a book, do not italicize, put quotes around the title, or underline.

A few citations in an essay examples include (General APA reference list formatting):

• Bureau of Labor Statistics. (2010). Publication manual of the American Labor Foundation (6th ed.). Washington, DC: Bureau of Labor Statistics.
• Branson, R., & Emily, L. C. (2001). Flight Simulation Instruction and Airline Safety Tutoring . Boston, Massachusetts: International School of Flight.

In MLA8 citation style, the reference list is titled " Works-Cited List " It contains the author's name, source title, publication date, and extra information that may vary depending on the source type.

The general rules for all Works-Cited Lists include:

• It must begin on a new page at the end of the document
• The list should be ordered alphabetically by the first author's name or title if the author is unknown. The articles "a," "an," and "the" should be ignored when alphabetizing.
• All entries must be double-spaced
• The second and subsequent lines must be indented half an inch from the margin.
• If there are multiple works by the same author, the first reference must contain the full name. However, subsequent references should have the author name replaced by "--- "

Here's an example:

• Mitchell, Michael B. A Guide to City Travel . 2nd ed, East Bay Publisher, 2019.

With ASA citation style, the reference list is written in a section titled REFERENCES . The following rules apply.

• All references should be double spaced and use a hanging indent
• All titles must use the title case
• Only the first word in hyphenated compound words should be capitalized unless the second word is an adjective or proper noun.
• All references should be listed alphabetically by the first author's last name.
• Include the first name of all authors instead of initials unless the author used them in the original publication
• List all authors. It is unacceptable to use et al. unless a committee authored the work
• For repeated editors or authors, include the full name in all references
• For sources listed from the same author, arrange them in chronological order from the earliest to the latest
• If an author appears in single-authored references and as the first author in a multi-authored source, list the single-authored references first.
• If the same author appears as the first author in multiple references, arrange them alphabetically by the second author's last name.
• If there are multiple works by the same author from the same year, add a letter to the year, such as (1998a, 1998b, 1998c), then list the references alphabetically by title.

Here's one example:

• Mark, Ted Martin, ed. 1989. Natural Degradation in the Amazon . Vol. 1, The History of the Amazon . Game Park, CA: Sage.

The Chicago citation style follows the following rules for writing reference lists:

• Write the reference list on a new page at the end of the document. Title it " Reference List " at the top
• There must be two blank lines between the first entry and the title
• Entries must appear to flush left. The right margin should be left rugged
• Each entry should have half-an-inch hanging indents
• Each entry should be single-spaced with a blank line between the entries
• If there are multiple works by the same author(s), replace the names with a 3-em dash for all entries after the first.
• Use letters to separate works from the same author(s) published in the same year.
• Martin Luther, Jan. 1994. Paving Equality . New York: Vintage.

Turabian citation style uses the same rules as Chicago Style for reference lists, just like in-text citations.

If you don't have time to write your paper , contact Studybay essay writing service, and we will do our best to make sure you get the best grade for your assignment!

You should generally follow the same pattern for citing written sources when citing online ones. Therefore, you should provide the name of the author, year, page title, name of the sponsor site (if available), day month year of access, and the URL.

The title of the work or the first word or two of the title in the parenthesis of your in-text citation should be used if your source does not have an author.

Citing a source in your essay can be accomplished through a variety of methods, the most popular of which are direct quotation, paraphrasing, and summarizing.

For website citations, you typically need to include the author's name, the title of the page, the name of the website, the publication date, and the website URL without the protocol "http(s)://."

With APA in-text citation, you cite two sources in one parenthesis by ordering the citations alphabetically in the same order they appear in the reference list. This rule also applies to citations shortened to et. al.

To cite anonymous sources in APA, write "Anonymous" in place of the author's name if the source uses the term. However, cite the source by its title instead if the author's name is missing and not replaced by "Anonymous" in the source.

In MLA, you cite different sources with the same author by only providing the author's name in the first entry. Subsequent entries will have three hyphens in place of the name. In APA, if the sources are from the same year, you can add a lowercase letter to the publication year and order them alphabetically.

Et al. means "and others." It is a Latin phrase used to shorten the list of author names in in-text citations to make it simpler and shorter to repeat references.

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When I saw the topic, I was a little bit skeptical. However, there were specific styles and how to use them mentioned. The content, from what I've read so far, is well put together and the use of English is good. It was refreshing to read up different ways to include other people's work in yours.

After I read this article, I realized that there is a need to use commas in referencing in APA formatting. I incorporated it in one chapter of the handbook I wrote recently, and I got amazing reviews.

I think anyone looking to learn about citing resources for any project or write up should be reading this. It is a clear and impactful introduction to students or inexperienced writers, especially those unaware of the issues with plagiarism.

I'm a poetry editor and I find this article resourceful because I use a lot of resources when writing. Some sentences are extracted from journals and other poems and acknowledging the sources with the formatting styles in this article has been worthwhile.

Writers, especially non-English language speakers, tend to have a lot of issues with citing the books, publications, or papers they used in their writing. As an ESL (and writer) myself, I know that referencing is basically inexistent in my school curriculum. This was worth the read and I have learned so much which I'll practice when I write next.

All the articles and papers that I have written in recent times have been exceptional because of this article. When creating each paper I ensure that the resources are formatted properly depending on the type of formatting I choose to use as explained here. This article is really helpful! Most of the styles reviewed and discussed are very crucial to my niche of writing.

I came across this page while researching material for a writing community presentation at my university. People tend to forget they need to point out where they sourced their content and I find this very enlightening. This article is really explanatory!

This article shows the better way to cite your sources. I will use it for the 7th edition of my magazine which is to be published in the New York Times very soon.

I didn't realize that the APA (American Psychological Association) style could be used to mention your chosen resource within the text of your paper. I feel smarter after reading this article.

MLA formatting and APA formatting have always been hard to distinguish. This article has helped me to understand the style guide of MLA formatting using the MLA handbook.

From annotated bibliography to the proper use of single quotation marks, this post was spot on. The addition of publication information as well as works cited entry informs readers of how to get the source information you used. This also helps them understand how your opinions were formed.

Modern language association style uses a system that gives a more detailed origin of the resources which are usually immediately after the quotation marks. This information has really improved my writing process.

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• APA Citation Generator

Free APA Citation Generator

Generate citations in APA format quickly and automatically, with MyBib!

🤔 What is an APA Citation Generator?

An APA citation generator is a software tool that will automatically format academic citations in the American Psychological Association (APA) style.

It will usually request vital details about a source -- like the authors, title, and publish date -- and will output these details with the correct punctuation and layout required by the official APA style guide.

Formatted citations created by a generator can be copied into the bibliography of an academic paper as a way to give credit to the sources referenced in the main body of the paper.

👩‍🎓 Who uses an APA Citation Generator?

College-level and post-graduate students are most likely to use an APA citation generator, because APA style is the most favored style at these learning levels. Before college, in middle and high school, MLA style is more likely to be used. In other parts of the world styles such as Harvard (UK and Australia) and DIN 1505 (Europe) are used more often.

🙌 Why should I use a Citation Generator?

Like almost every other citation style, APA style can be cryptic and hard to understand when formatting citations. Citations can take an unreasonable amount of time to format manually, and it is easy to accidentally include errors. By using a citation generator to do this work you will:

• Save a considerable amount of time
• Ensure that your citations are consistent and formatted correctly
• Be rewarded with a higher grade

In academia, bibliographies are graded on their accuracy against the official APA rulebook, so it is important for students to ensure their citations are formatted correctly. Special attention should also be given to ensure the entire document (including main body) is structured according to the APA guidelines. Our complete APA format guide has everything you need know to make sure you get it right (including examples and diagrams).

⚙️ How do I use MyBib's APA Citation Generator?

Our APA generator was built with a focus on simplicity and speed. To generate a formatted reference list or bibliography just follow these steps:

• Start by searching for the source you want to cite in the search box at the top of the page.
• MyBib will automatically locate all the required information. If any is missing you can add it yourself.
• Your citation will be generated correctly with the information provided and added to your bibliography.
• Repeat for each citation, then download the formatted list and append it to the end of your paper.

MyBib supports the following for APA style:

Daniel is a qualified librarian, former teacher, and citation expert. He has been contributing to MyBib since 2018.

Scribbr APA Citation Generator

Accurate APA citations, verified by experts, trusted by millions.

Scribbr for Chrome: Your shortcut to APA citations

Cite any page or article with a single click right from your browser. The extension does the hard work for you by automatically grabbing the title, author(s), publication date, and everything else needed to whip up the perfect APA citation.

Add to Chrome. It's free!

Rely on accurate APA citations, verified by experts.

You don’t want points taken off for incorrect citations. That’s why our APA citation experts have invested countless hours perfecting our algorithms. As a result, we’re proud to be recommended by teachers worldwide.

Enjoy the APA Citation Generator with minimal distraction.

Staying focused is already challenging enough. You don’t need video pop-ups and flickering banner ads slowing you down. At Scribbr, we keep distractions to a minimum while also keeping the APA Citation Generator free for everyone.

Citation Generator features you'll love

Search for your source by title, URL, DOI, ISBN, and more to retrieve the relevant information automatically.

APA 6th & 7th edition

Scribbr's Citation Generator supports both APA 6 and APA 7 (as well as MLA and Harvard ). No matter what edition you're using, we’ve got you covered!

Export to Bib(La)TeX

Easily export in BibTeX format and continue working in your favorite LaTeX editor.

Export to Word

Reference list finished? Export to Word with perfect indentation and spacing set up for you.

Sorting, grouping, and filtering

Organize the reference list the way you want: from A to Z, new to old, or grouped by source type.

Save multiple lists

Stay organized by creating a separate reference list for each of your assignments.

Choose between Times New Roman, Arial, Calibri, and more options to match your style.

Industry-standard technology

The Scribbr Citation Generator is built using the same citation software (CSL) as Mendeley and Zotero, but with an added layer for improved accuracy.

Annotations

Create perfectly formatted annotated bibliographies with just a few clicks.

Explanatory tips help you get the details right to ensure accurate citations.

Citation guides

Getting to grips with citation is simple with the help of our highly rated APA citation guides and videos .

Secure backup

Your work is saved automatically after every change and stored securely in your Scribbr account.

• Introduction
• Parenthetical vs. narrative
• Multiple authors

Missing information

• Sources to include

Tools and resources

• Scroll to top

How to create APA citations

APA Style is widely used by students, researchers, and professionals in the social and behavioral sciences. Scribbr’s free citation generator automatically generates accurate references and in-text citations.

This citation guide outlines the most important citation guidelines from the 7th edition APA Publication Manual (2020).

• Cite a webpage
• Cite a book
• Cite a journal article
• Cite a YouTube video

APA in-text citations

APA in-text citations include the author’s last name, publication date, and, if relevant, a locator such as a page number or timestamp. For example, (Smith, 2021, p. 170) . See it as a shorter version of the entry in the reference list .

You should include in-text citations every time you’re quoting or paraphrasing someone else’s ideas or words. In doing so, you give credit to the original author and avoid plagiarism .

Parenthetical vs. narrative citation

The in-text citation can take two forms: parenthetical and narrative. Both types are generated automatically when citing a source with Scribbr’s APA Citation Generator.

• Parenthetical citation: According to new research … (Smith, 2020) .
• Narrative citation: Smith (2020) notes that …

Multiple authors and corporate authors

The in-text citation changes slightly when a source has multiple authors or an organization as an author. Pay attention to punctuation and the use of the ampersand (&) symbol.

When the author, publication date or locator is unknown, take the steps outlined below.

APA Citation Generator

Generate accurate APA citations in seconds

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APA references

APA references generally include information about the author , publication date , title , and source . Depending on the type of source, you may have to include extra information that helps your reader locate the source.

It is not uncommon for certain information to be unknown or missing, especially with sources found online. In these cases, the reference is slightly adjusted.

Formatting the APA reference page

On the first line of the page, write the section label “References” (in bold and centered). On the second line, start listing your references in alphabetical order .

Apply these formatting guidelines to the APA reference page:

• Double spacing (within and between references)
• Hanging indent of ½ inch
• Legible font (e.g. Times New Roman 12 or Arial 11)
• Page number in the top right header

Which sources to include

On the reference page, you only include sources that you have cited in the text (with an in-text citation ). You should not include references to personal communications that your reader can’t access (e.g. emails, phone conversations or private online material).

In addition to the APA Citation Generator, Scribbr provides many more tools and resources that help millions of students and academics every month.

• Citation Generator : Generate flawless citations in APA, MLA , and Harvard style .
• Citation Checker : Upload your paper and have artificial intelligence check your citations for errors and inconsistencies.
• Free plagiarism checker : Detect plagiarism with unparalleled accuracy with Scribbr’s free plagiarism checker.
• AI Proofreader : Upload and improve unlimited documents and earn higher grades on your assignments. Try it for free!
• Paraphrasing tool: Avoid accidental plagiarism and make your text sound better.
• Grammar checker : Eliminate pesky spelling and grammar mistakes.
• Summarizer: Read more in less time. Distill lengthy and complex texts down to their key points.
• AI detector: Find out if your text was written with ChatGPT or any other AI writing tool. ChatGPT 2 & ChatGPT 3 supported.
• Proofreading services : Have a professional editor (or team of editors) improve your writing so you can submit your paper with pride and confidence. Scribbr offers admission essay editing , paper editing , and academic editing .
• Guides and videos : Explore hundreds of articles, bite-sized videos, time-saving templates, and handy checklists that guide you through the process of research, writing, and citation.

Purdue Online Writing Lab Purdue OWL® College of Liberal Arts

In-Text Citations: The Basics

Welcome to the Purdue OWL

This page is brought to you by the OWL at Purdue University. When printing this page, you must include the entire legal notice.

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.

Note:  This page reflects APA 6, which is now out of date. It will remain online until 2021, but will not be updated. The equivalent APA 7 page can be found here .

Reference citations in text are covered on pages 169-179 of the Publication Manual. What follows are some general guidelines for referring to the works of others in your essay.

Note:  On pages 65-66, the Publication Manual suggests that authors of research papers should use the past tense or present perfect tense for signal phrases that occur in the literature review and procedure descriptions (for example, Jones (1998) found or Jones (1998) has found ...). Contexts other than traditionally-structured research writing may permit the simple present tense (for example, Jones (1998)  finds ).

APA citation basics

When using APA format, follow the author-date method of in-text citation. This means that the author's last name and the year of publication for the source should appear in the text, for example, (Jones, 1998), and a complete reference should appear in the reference list at the end of the paper.

If you are referring to an idea from another work but NOT directly quoting the material, or making reference to an entire book, article or other work, you only have to make reference to the author and year of publication and not the page number in your in-text reference. All sources that are cited in the text must appear in the reference list at the end of the paper.

In-text citation capitalization, quotes, and italics/underlining

• Always capitalize proper nouns, including author names and initials: D. Jones.

( Note: in your References list, only the first word of a title will be capitalized: Writing new media .)

• When capitalizing titles, capitalize both words in a hyphenated compound word: Natural-Born Cyborgs .
• Capitalize the first word after a dash or colon: "Defining Film Rhetoric: The Case of Hitchcock's Vertigo ."
• Italicize the titles of longer works such as books, edited collections, movies, television series, documentaries, or albums: The Closing of the American Mind ; The Wizard of Oz ; Friends .
• Put quotation marks around the titles of shorter works such as journal articles, articles from edited collections, television series episodes, and song titles: "Multimedia Narration: Constructing Possible Worlds;" "The One Where Chandler Can't Cry."

Short quotations

If you are directly quoting from a work, you will need to include the author, year of publication, and page number for the reference (preceded by "p."). Introduce the quotation with a signal phrase that includes the author's last name followed by the date of publication in parentheses.

According to Jones (1998), "Students often had difficulty using APA style, especially when it was their first time" (p. 199).

Jones (1998) found "students often had difficulty using APA style" (p. 199); what implications does this have for teachers?

If the author is not named in a signal phrase, place the author's last name, the year of publication, and the page number in parentheses after the quotation.

She stated, "Students often had difficulty using APA style" (Jones, 1998, p. 199), but she did not offer an explanation as to why.

Long quotations

Place direct quotations that are 40 words or longer in a free-standing block of typewritten lines and omit quotation marks. Start the quotation on a new line, indented 1/2 inch from the left margin, i.e., in the same place you would begin a new paragraph. Type the entire quotation on the new margin, and indent the first line of any subsequent paragraph within the quotation 1/2 inch from the new margin. Maintain double-spacing throughout. The parenthetical citation should come after the closing punctuation mark.

Students often had difficulty using APA style, especially when it was their first time citing sources. This difficulty could be attributed to the fact that many students failed to purchase a style manual or to ask their teacher for help. (p. 199)

Summary or paraphrase

If you are paraphrasing an idea from another work, you only have to make reference to the author and year of publication in your in-text reference, but APA guidelines encourage you to also provide the page number (although it is not required).

According to Jones (1998), APA style is a difficult citation format for first-time learners.

APA style is a difficult citation format for first-time learners (Jones, 1998, p. 199).

Suggestions or feedback?

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MIT study explains why laws are written in an incomprehensible style

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Legal documents are notoriously difficult to understand, even for lawyers. This raises the question: Why are these documents written in a style that makes them so impenetrable?

MIT cognitive scientists believe they have uncovered the answer to that question. Just as “magic spells” use special rhymes and archaic terms to signal their power, the convoluted language of legalese acts to convey a sense of authority, they conclude.

In a study appearing this week in the journal of the Proceedings of the National Academy of Sciences , the researchers found that even non-lawyers use this type of language when asked to write laws.

“People seem to understand that there’s an implicit rule that this is how laws should sound, and they write them that way,” says Edward Gibson, an MIT professor of brain and cognitive sciences and the senior author of the study.

Eric Martinez PhD ’24 is the lead author of the study. Francis Mollica, a lecturer at the University of Melbourne, is also an author of the paper .

Casting a legal spell

Gibson’s research group has been studying the unique characteristics of legalese since 2020, when Martinez came to MIT after earning a law degree from Harvard Law School. In a 2022 study , Gibson, Martinez, and Mollica analyzed legal contracts totaling about 3.5 million words, comparing them with other types of writing, including movie scripts, newspaper articles, and academic papers.

That analysis revealed that legal documents frequently have long definitions inserted in the middle of sentences — a feature known as “center-embedding.” Linguists have previously found that this kind of structure can make text much more difficult to understand.

“Legalese somehow has developed this tendency to put structures inside other structures, in a way which is not typical of human languages,” Gibson says.

In a follow-up study published in 2023, the researchers found that legalese also makes documents more difficult for lawyers to understand. Lawyers tended to prefer plain English versions of documents, and they rated those versions to be just as enforceable as traditional legal documents.

“Lawyers also find legalese to be unwieldy and complicated,” Gibson says. “Lawyers don’t like it, laypeople don’t like it, so the point of this current paper was to try and figure out why they write documents this way.”

The researchers had a couple of hypotheses for why legalese is so prevalent. One was the “copy and edit hypothesis,” which suggests that legal documents begin with a simple premise, and then additional information and definitions are inserted into already existing sentences, creating complex center-embedded clauses.

“We thought it was plausible that what happens is you start with an initial draft that’s simple, and then later you think of all these other conditions that you want to include. And the idea is that once you’ve started, it’s much easier to center-embed that into the existing provision,” says Martinez, who is now a fellow and instructor at the University of Chicago Law School.

However, the findings ended up pointing toward a different hypothesis, the so-called “magic spell hypothesis.” Just as magic spells are written with a distinctive style that sets them apart from everyday language, the convoluted style of legal language appears to signal a special kind of authority, the researchers say.

“In English culture, if you want to write something that’s a magic spell, people know that the way to do that is you put a lot of old-fashioned rhymes in there. We think maybe center-embedding is signaling legalese in the same way,” Gibson says.

In this study, the researchers asked about 200 non-lawyers (native speakers of English living in the United States, who were recruited through a crowdsourcing site called Prolific), to write two types of texts. In the first task, people were told to write laws prohibiting crimes such as drunk driving, burglary, arson, and drug trafficking. In the second task, they were asked to write stories about those crimes.

To test the copy and edit hypothesis, half of the participants were asked to add additional information after they wrote their initial law or story. The researchers found that all of the subjects wrote laws with center-embedded clauses, regardless of whether they wrote the law all at once or were told to write a draft and then add to it later. And, when they wrote stories related to those laws, they wrote in much plainer English, regardless of whether they had to add information later.

“When writing laws, they did a lot of center-embedding regardless of whether or not they had to edit it or write it from scratch. And in that narrative text, they did not use center-embedding in either case,” Martinez says.

In another set of experiments, about 80 participants were asked to write laws, as well as descriptions that would explain those laws to visitors from another country. In these experiments, participants again used center-embedding for their laws, but not for the descriptions of those laws.

The origins of legalese

Gibson’s lab is now investigating the origins of center-embedding in legal documents. Early American laws were based on British law, so the researchers plan to analyze British laws to see if they feature the same kind of grammatical construction. And going back much farther, they plan to analyze whether center-embedding is found in the Hammurabi Code, the earliest known set of laws, which dates to around 1750 BC.

“There may be just a stylistic way of writing from back then, and if it was seen as successful, people would use that style in other languages,” Gibson says. “I would guess that it’s an accidental property of how the laws were written the first time, but we don’t know that yet.”

The researchers hope that their work, which has identified specific aspects of legal language that make it more difficult to understand, will motivate lawmakers to try to make laws more comprehensible. Efforts to write legal documents in plainer language date to at least the 1970s, when President Richard Nixon declared that federal regulations should be written in “layman’s terms.” However, legal language has changed very little since that time.

“We have learned only very recently what it is that makes legal language so complicated, and therefore I am optimistic about being able to change it,” Gibson says. 

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Characterizing Long COVID in Children and Adolescents

• 1 Division of General Pediatrics, Department of Pediatrics, NYU Grossman School of Medicine, New York
• 2 Department of Biostatistics, Massachusetts General Hospital, Boston
• 3 Department of Medicine, Harvard Medical School, Boston, Massachusetts
• 4 Division of Population Health, Quality, and Implementation Sciences (PopQuIS), Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
• 5 Bristol Myers Squibb Children’s Hospital, New Brunswick, New Jersey
• 6 Division of Infectious Diseases, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock
• 7 Division of Pediatric Cardiology, Department of Pediatrics, Columbia University Vagelos College of Physicians and Surgeons, New York, New York
• 8 Division of Pediatric Allergy, Immunology and Rheumatology, Department of Pediatrics, Columbia University Vagelos College of Physicians and Surgeons, New York, New York
• 9 Division of Respiratory Medicine, Department of Pediatrics, UC San Diego School of Medicine, Rady Children’s Hospital, San Diego, California
• 10 Division of Child and Community Health, Department of Pediatrics, UC San Diego School of Medicine, Rady Children’s Hospital, San Diego, California
• 11 Departments of Cognitive Science, Psychiatry, and Radiology, UC San Diego School of Medicine, Rady Children’s Hospital, San Diego, California
• 12 School of Nursing, Virginia Commonwealth University, Richmond
• 13 Division of Neonatal-Perinatal Medicine, Department of Pediatrics, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles
• 14 Division of Infectious Diseases, Department of Pediatrics, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles
• 15 Division of Cardiology, Department of Pediatrics, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles
• 16 Department of Cardiology, Harvard Medical School, Boston, Massachusetts
• 17 Boston Children’s Hospital, Boston, Massachusetts
• 18 Division of Pediatric Cardiology, Department of Pediatrics, University of Utah, Primary Children’s Hospital, Salt Lake City
• 19 Division of General Pediatrics, Department of Pediatrics, University of California, San Francisco
• 20 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Utah Health, Salt Lake City
• 21 Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Massachusetts General Hospital, Boston
• 22 Brigham and Women’s Hospital, Boston, Massachusetts
• 23 Division of Neurology, Department of Neurology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
• 24 Massachusetts General Hospital, Boston
• 25 Division of Child Study Center, Department of Child and Adolescent Psychiatry, NYU Grossman School of Medicine, New York
• 26 Department of Medicine, NYU Grossman School of Medicine, New York
• 27 Division of Pediatric Critical Care Medicine, Department of Pediatrics, NYU Grossman School of Medicine, New York
• 28 Division of Cardiology, Department of Medicine, NYU Grossman School of Medicine, New York
• 29 NYU Grossman School of Medicine, Bellevue Hospital Center, New York
• 30 Division of Developmental and Behavioral Pediatrics, Department of Pediatrics, NYU Grossman School of Medicine, New York
• 31 RECOVER Patient, Caregiver, or Community Advocate Representative, New York, New York
• 32 Long Covid Families, Charlotte, North Carolina
• 33 Division of Long COVID, Department of Pandemic Equity, Vermont Center for Independent Living, Montpelier
• 34 Patient Led Research Collaborative, Washington, DC
• 35 CORe Community, Inc (COVID Recovery through Community, a 501c3), New York, New York
• 36 Division of Community Impact, Department of Health Strategies, American Heart Association, Atlanta, Georgia
• 37 Division of Biostatistics, Department of Medicine, Massachusetts General Hospital, Boston
• 38 Division of Child and Adolescent Health, Department of Pediatrics, Columbia University Vagelos College of Physicians and Surgeons, New York, New York
• 39 Department of Population and Family Health, Mailman School of Public Health, New York-Presbyterian Hospital, New York
• Editorial Uncovering Pediatric Long COVID Suchitra Rao, MBBS, MSCS JAMA

Question   What prolonged symptoms experienced by youth are most associated with SARS-CoV-2 infection?

Findings   Among 5367 participants in the RECOVER-Pediatrics cohort study, 14 symptoms in both school-age children (6-11 years) and adolescents (12-17 years) were more common in those with vs without SARS-CoV-2 infection history, with 4 additional symptoms in school-age children only and 3 in adolescents only. Empirically derived indices for PASC research and associated clustering patterns were developed.

Meaning   This study developed research indices for characterizing pediatric PASC. Symptom patterns were similar but distinguishable between school-age children and adolescents, highlighting the importance of characterizing PASC separately in different age groups.

Importance   Most research to understand postacute sequelae of SARS-CoV-2 infection (PASC), or long COVID, has focused on adults, with less known about this complex condition in children. Research is needed to characterize pediatric PASC to enable studies of underlying mechanisms that will guide future treatment.

Objective   To identify the most common prolonged symptoms experienced by children (aged 6 to 17 years) after SARS-CoV-2 infection, how these symptoms differ by age (school-age [6-11 years] vs adolescents [12-17 years]), how they cluster into distinct phenotypes, and what symptoms in combination could be used as an empirically derived index to assist researchers to study the likely presence of PASC.

Design, Setting, and Participants   Multicenter longitudinal observational cohort study with participants recruited from more than 60 US health care and community settings between March 2022 and December 2023, including school-age children and adolescents with and without SARS-CoV-2 infection history.

Exposure   SARS-CoV-2 infection.

Main Outcomes and Measures   PASC and 89 prolonged symptoms across 9 symptom domains.

Results   A total of 898 school-age children (751 with previous SARS-CoV-2 infection [referred to as infected ] and 147 without [referred to as uninfected ]; mean age, 8.6 years; 49% female; 11% were Black or African American, 34% were Hispanic, Latino, or Spanish, and 60% were White) and 4469 adolescents (3109 infected and 1360 uninfected; mean age, 14.8 years; 48% female; 13% were Black or African American, 21% were Hispanic, Latino, or Spanish, and 73% were White) were included. Median time between first infection and symptom survey was 506 days for school-age children and 556 days for adolescents. In models adjusted for sex and race and ethnicity, 14 symptoms in both school-age children and adolescents were more common in those with SARS-CoV-2 infection history compared with those without infection history, with 4 additional symptoms in school-age children only and 3 in adolescents only. These symptoms affected almost every organ system. Combinations of symptoms most associated with infection history were identified to form a PASC research index for each age group; these indices correlated with poorer overall health and quality of life. The index emphasizes neurocognitive, pain, and gastrointestinal symptoms in school-age children but change or loss in smell or taste, pain, and fatigue/malaise–related symptoms in adolescents. Clustering analyses identified 4 PASC symptom phenotypes in school-age children and 3 in adolescents.

Conclusions and Relevance   This study developed research indices for characterizing PASC in children and adolescents. Symptom patterns were similar but distinguishable between the 2 groups, highlighting the importance of characterizing PASC separately for these age ranges.

• Editorial Uncovering Pediatric Long COVID JAMA

Read More About

Gross RS , Thaweethai T , Kleinman LC, et al. Characterizing Long COVID in Children and Adolescents. JAMA. Published online August 21, 2024. doi:10.1001/jama.2024.12747

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