{"id":2079,"date":"2026-05-08T14:06:06","date_gmt":"2026-05-08T08:36:06","guid":{"rendered":"https:\/\/www.editage.com\/insights\/using-et-al-for-in-text-citations-in-research-papers\/"},"modified":"2026-05-25T10:36:40","modified_gmt":"2026-05-25T05:06:40","slug":"using-et-al-for-in-text-citations-in-research-papers","status":"publish","type":"post","link":"https:\/\/www.editage.com\/insights\/using-et-al-for-in-text-citations-in-research-papers","title":{"rendered":"Using &#8220;et al.&#8221; for in-text citations in research papers"},"content":{"rendered":"<p><strong>How to Use &#8220;Et Al.&#8221; Correctly in Research Citations: APA, Chicago &amp; Harvard Guidelines<\/strong><\/p>\n<p><strong>Meta Description:<\/strong><\/p>\n<h2>Key Takeaways<\/h2>\n<ul>\n<li>\u2713 <strong>Et al.<\/strong> means &#8220;and others&#8221; and is used to shorten in-text citations with multiple authors<\/li>\n<li>\u2713 When to use it depends on your citation style:<\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>APA:<\/strong> 3+ authors<\/li>\n<li><strong>Chicago:<\/strong> 4+ authors (after first mention)<\/li>\n<li><strong>Harvard:<\/strong> 4+ authors<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\u2713 Always list ALL authors in your reference list, bibliography, or works cited section\u2014never use &#8220;et al.&#8221; there<\/li>\n<li>\u2713 Format matters: it&#8217;s always <strong>et al.<\/strong> (with a period after &#8220;al&#8221;), in regular text, not italicized<\/li>\n<li>\u2713 When in doubt, check your journal&#8217;s author guidelines or use a <a href=\"https:\/\/paperpal.com\/tools\/citation-generator\">citation generator<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>Why Use Et Al.?<\/h2>\n<p>Most research papers have multiple authors, and citing all their names every time creates cluttered, awkward references. That&#8217;s where &#8220;et al.&#8221; comes in. This Latin abbreviation means &#8220;and others,&#8221; and it&#8217;s essential for keeping your citations clean and professional.<\/p>\n<p><strong>The short version:<\/strong> Use &#8220;et al.&#8221; when citing papers with more than two authors (rules vary by citation style). We&#8217;ll show you exactly when and how to use it for each major style.<\/p>\n<p>&nbsp;<\/p>\n<h2>What Does &#8220;Et Al.&#8221; Actually Mean?<\/h2>\n<p>&#8220;Et al.&#8221; is Latin for <em>et alii<\/em> (masculine) or <em>et aliae<\/em> (feminine), both meaning &#8220;and others.&#8221; In academic writing, it&#8217;s a shorthand that tells readers there are additional authors you&#8217;re not listing.<\/p>\n<p><strong>Important formatting rule:<\/strong> The second word (<em>al<\/em>.) always takes a period, regardless of where it appears in your sentence. This trips up many writers, so remember: <strong>et al.<\/strong> (never &#8220;et al&#8221; or &#8220;etal&#8221;).<\/p>\n<p>&nbsp;<\/p>\n<h2>Et Al. Rules by Citation Style<\/h2>\n<p>Since different academic disciplines use different citation styles, rules for &#8220;et al.&#8221; vary. Here&#8217;s the complete breakdown:<\/p>\n<h3><strong>Citation Style Quick Reference Table<\/strong><\/h3>\n<table>\n<thead>\n<tr>\n<td><strong>Citation Style<\/strong><\/td>\n<td><strong>Number of Authors<\/strong><\/td>\n<td><strong>First Citation<\/strong><\/td>\n<td><strong>Subsequent Citations<\/strong><\/td>\n<td><strong>Example<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><a href=\"https:\/\/www.editage.com\/insights\/cheat-sheet-american-psychological-association-manual-of-style\"><strong>APA (7th ed.)<\/strong><\/a><\/td>\n<td>1-2 authors<\/td>\n<td>All names<\/td>\n<td>All names<\/td>\n<td>Smith &amp; Jones (2022)<\/td>\n<\/tr>\n<tr>\n<td><strong>APA (7th ed.)<\/strong><\/td>\n<td>3+ authors<\/td>\n<td>First author + et al.<\/td>\n<td>First author + et al.<\/td>\n<td>Smith et al. (2022)<\/td>\n<\/tr>\n<tr>\n<td><strong>Chicago (17th ed.)<\/strong><\/td>\n<td>1-3 authors<\/td>\n<td>All names<\/td>\n<td>All names<\/td>\n<td>Smith, Jones, and Brown, 2022<\/td>\n<\/tr>\n<tr>\n<td><strong>Chicago (17th ed.)<\/strong><\/td>\n<td>4+ authors<\/td>\n<td>All names (first citation)<\/td>\n<td>First author + et al.<\/td>\n<td>Smith, Jones, Brown, and Davis, 2022 (first); Smith et al., 2022 (after)<\/td>\n<\/tr>\n<tr>\n<td><strong>Harvard<\/strong><\/td>\n<td>1-3 authors<\/td>\n<td>All names<\/td>\n<td>All names<\/td>\n<td>Smith, Jones &amp; Brown 2022<\/td>\n<\/tr>\n<tr>\n<td><strong>Harvard<\/strong><\/td>\n<td>4+ authors<\/td>\n<td>First author + et al.<\/td>\n<td>First author + et al.<\/td>\n<td>Smith et al. 2022<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.editage.com\/insights\/mla-formatting-style-guide-for-research-papers\" target=\"_blank\" rel=\"noopener\"><strong>MLA (9th ed.)<\/strong><\/a><\/td>\n<td>Any number<\/td>\n<td>First author only<\/td>\n<td>First author only<\/td>\n<td>Smith et al. 123 (in-text); Smith et al. in Works Cited<\/td>\n<\/tr>\n<tr>\n<td><strong>Cambridge University Press (STM)<\/strong><\/td>\n<td>1-2 authors<\/td>\n<td>All names<\/td>\n<td>All names<\/td>\n<td>Smith &amp; Jones<\/td>\n<\/tr>\n<tr>\n<td><strong>Cambridge University Press (STM)<\/strong><\/td>\n<td>3 authors<\/td>\n<td>All three (variable)<\/td>\n<td>All three or et al.<\/td>\n<td>See note below<\/td>\n<\/tr>\n<tr>\n<td><strong>Cambridge University Press (STM)<\/strong><\/td>\n<td>4+ authors<\/td>\n<td>First author + et al.<\/td>\n<td>First author + et al.<\/td>\n<td>Smith et al.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Cambridge Note:<\/strong> For 3-author citations, Cambridge offers flexibility: you may cite all three names throughout, use all three at first mention then et al. thereafter, or use et al. from the start.<\/p>\n<p>&nbsp;<\/p>\n<h2>APA Citation Style &amp; Et Al.<\/h2>\n<p>The American Psychological Association (APA) is widely used in psychology, education, and social sciences.<\/p>\n<h3>APA Rules for Et Al.<\/h3>\n<p><strong>1-2 Authors:<\/strong> Always list all names, every time.<\/p>\n<ul>\n<li>First citation: Smith &amp; Jones (2022)<\/li>\n<li>Subsequent citation: Smith &amp; Jones (2022)<\/li>\n<\/ul>\n<p><strong>3 or more authors:<\/strong> Use first author&#8217;s name + et al.<\/p>\n<ul>\n<li>First citation: Smith et al. (2022)<\/li>\n<li>Subsequent citation: Smith et al. (2022)<\/li>\n<\/ul>\n<h3>Practical APA Examples<\/h3>\n<h4>One author:<\/h4>\n<p>Recent research shows that mindfulness interventions reduce anxiety (Johnson, 2021).<\/p>\n<h4>Two authors:<\/h4>\n<p>Two studies examined this effect (Brown &amp; Davis, 2021; Wilson &amp; Martinez, 2020).<\/p>\n<h4>Three or more authors:<\/h4>\n<p>Large-scale meta-analyses suggest positive outcomes (Anderson et al., 2022).<\/p>\n<p>In your reference list, you still list all authors:<\/p>\n<p>Anderson, K. L., Wilson, R. S., Martinez, J. P., &amp; Davis, E. T. (2022). <em>Mindfulness and mental health outcomes<\/em>. <em>Journal of Psychology<\/em>, 15(3), 234-251.<\/p>\n<p>&nbsp;<\/p>\n<h2>Chicago Manual of Style &amp; Et Al.<\/h2>\n<p>Chicago style is the standard in history, some humanities disciplines, and some professional writing.<\/p>\n<h3>Chicago Rules for Et Al.<\/h3>\n<p><strong>1-3 authors:<\/strong> List all names in both first and subsequent citations (in notes and bibliography).<\/p>\n<ul>\n<li>Smith, Jones, and Brown. 2022.<\/li>\n<li>Smith, Jones, and Brown. 2022. (repeated)<\/li>\n<\/ul>\n<p><strong>4 or more authors:<\/strong><\/p>\n<ul>\n<li>First mention: List all authors<\/li>\n<li>Subsequent mentions: First author + et al.<\/li>\n<\/ul>\n<h4>Practical Chicago Examples<\/h4>\n<p><strong>In footnotes:<\/strong><\/p>\n<p>\u00b9 John Smith, Maria Jones, and Robert Brown, &#8220;Effective Teaching Strategies,&#8221; <em>Educational Review<\/em> 45, no. 2 (2022): 112. \u00b2 Smith et al., &#8220;Effective Teaching Strategies,&#8221; 115.<\/p>\n<p><strong>In bibliography:<\/strong><\/p>\n<p>Smith, John, Maria Jones, Robert Brown, and Patricia Davis. &#8220;Effective Teaching Strategies.&#8221; <em>Educational Review<\/em> 45, no. 2 (2022): 110-128.<\/p>\n<p>&nbsp;<\/p>\n<h3>Harvard Citation Style &amp; Et Al.<\/h3>\n<p>Harvard style is common in UK universities and some business schools.<\/p>\n<h4>Harvard Rules for Et Al.<\/h4>\n<p><strong>1-3 authors:<\/strong> List all names.<\/p>\n<ul>\n<li>Smith, Jones &amp; Brown 2022<\/li>\n<\/ul>\n<p><strong>4 or more authors:<\/strong> First author + et al.<\/p>\n<ul>\n<li>Smith et al. 2022<\/li>\n<\/ul>\n<h4>Practical Harvard Examples<\/h4>\n<p><strong>In-text with one author:<\/strong><\/p>\n<p>According to Smith (2022), climate change requires immediate action.<\/p>\n<p><strong>In-text with two authors:<\/strong><\/p>\n<p>Two researchers argue that this approach fails (Brown &amp; Davis, 2022).<\/p>\n<p><strong>In-text with three or more authors:<\/strong><\/p>\n<p>Research demonstrates mixed results (Anderson et al., 2022).<\/p>\n<p><strong>Reference list (all styles list all authors):<\/strong><\/p>\n<p>Anderson, K.L., Wilson, R.S., Martinez, J.P. &amp; Davis, E.T. 2022, &#8216;Sustainable business practices&#8217;, <em>Journal of Business Ethics<\/em>, 78(4), pp.456-475.<\/p>\n<p>&nbsp;<\/p>\n<h2>Common Et Al. Mistakes to Avoid<\/h2>\n<h3>Mistake #1: Inconsistent Usage<\/h3>\n<p>\u274c <strong>Wrong:<\/strong> Anderson et al. (2022) found that&#8230; Later: Anderson, Wilson, and Martinez (2022) showed&#8230;<\/p>\n<p>\u2705 <strong>Right:<\/strong> Pick one format and stick with it based on your style guide.<\/p>\n<h3>Mistake #2: Using Et Al. with One or Two Authors (in APA\/Harvard)<\/h3>\n<p>\u274c <strong>Wrong:<\/strong> Smith et al. (2022) for a two-author paper<\/p>\n<p>\u2705 <strong>Right:<\/strong> Smith &amp; Jones (2022)<\/p>\n<h3>Mistake #3: Forgetting the Period After &#8220;Al&#8221;<\/h3>\n<p>\u274c <strong>Wrong:<\/strong> et al (without period) \u274c <strong>Wrong:<\/strong> et al. (with space before period)<\/p>\n<p>\u2705 <strong>Right:<\/strong> et al. (period after the abbreviation)<\/p>\n<h3>Mistake #4: Capitalizing Et in the Middle of a Sentence<\/h3>\n<p>\u274c <strong>Wrong:<\/strong> Recently, Jameson Et al. conducted a study&#8230;<\/p>\n<p>\u2705 <strong>Right:<\/strong> Recently, Jameson et al. conducted a study&#8230;<\/p>\n<p>&nbsp;<\/p>\n<h2>Tools to Help You Get Citation Format Right<\/h2>\n<p>Managing citations across different styles can be overwhelming. These tools can help:<\/p>\n<h3>Paperpal Citation Generator<\/h3>\n<p><a href=\"https:\/\/paperpal.com\/tools\/citation-generator\"><strong>Paperpal&#8217;s free citation generator<\/strong><\/a> supports APA, Chicago, Harvard, MLA, and 10,000+ journal styles. It&#8217;s an excellent way to:<\/p>\n<ul>\n<li>Generate correctly formatted citations in seconds<\/li>\n<li>Switch between citation styles instantly<\/li>\n<li>Create full reference lists automatically<\/li>\n<li>Check citation formatting before submission<\/li>\n<\/ul>\n<p><a href=\"https:\/\/paperpal.com\/tools\/citation-generator\">Try Paperpal&#8217;s free citation generator \u2192<\/a><\/p>\n<h3>Other Helpful Resources<\/h3>\n<ul>\n<li><strong>Citation Management Software:<\/strong> Zotero, Mendeley, and EndNote help you organize sources and generate citations automatically<\/li>\n<li><strong>Your Journal&#8217;s Website:<\/strong> Always check the &#8220;Instructions for Authors&#8221; page for specific requirements<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>FAQs About Et Al.<\/h2>\n<h3>Do I need to list all authors in my bibliography or reference list?<\/h3>\n<p>Usually, the &#8220;et al.&#8221; abbreviation is only for in-text citations. In your reference list, bibliography, or works cited section, you list all authors. However, some biomedical journals ask you to list a set number of authors (usually 3-10) by name in the reference list and then use et al. for the rest. This is because there are huge multi-author, multi-center, multi-national studies with 50+ authors in fields like genetics and genomis.<\/p>\n<h3>Should &#8220;et al.&#8221; be italicized?<\/h3>\n<p>No. &#8220;Et al.&#8221; should be in regular (roman) text, not italics. The article or book title is italicized, but not the et al. abbreviation.<\/p>\n<h3>Is there a difference between &#8220;et al.&#8221; and &#8220;et alia&#8221;?<\/h3>\n<p>Both mean &#8220;and others,&#8221; but &#8220;et al.&#8221; is the standard abbreviation used in academic citations. You&#8217;ll rarely see &#8220;et alia&#8221; in modern research papers; stick with &#8220;et al.&#8221;<\/p>\n<h3>What if I&#8217;m citing a source by an organization instead of individual authors?<\/h3>\n<p>If there&#8217;s no individual author, cite the organization name. If the organization name is long, you can abbreviate it on subsequent citations, but this is different from &#8220;et al.&#8221; (which is only for multiple people).<\/p>\n<p>Example: (American Psychological Association, 2020) \u2192 (APA, 2020)<\/p>\n<h3>Can I use &#8220;et al.&#8221; in my paper&#8217;s main text outside of citations?<\/h3>\n<p>Typically, no. Reserve &#8220;et al.&#8221; for citations and references only. In your main text, write out names naturally: &#8220;Patients, policymakers, and nurses participated&#8230;&#8221; rather than &#8220;Patients et al. participated &#8230;&#8221;<\/p>\n<h3>Do different journals have different et al. rules?<\/h3>\n<p>Yes. Always consult your target journal&#8217;s author guidelines. While most follow standard citation styles, some have modified rules. For example, the <em>American Journal of Tropical Medicine and Hygiene<\/em> avoids using &#8220;et al.&#8221; altogether, regardless of the number of authors.<\/p>\n<p>&nbsp;<\/p>\n<p><em>This article was originally published on January 16, 2014, and updated on May 7, 2026.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>How to Use &#8220;Et Al.&#8221; Correctly in Research Citations: APA, Chicago &amp; Harvard Guidelines Meta Description: Key Takeaways \u2713 Et al. means &#8220;and others&#8221; and is used to shorten in-text citations with multiple authors \u2713 When to use it depends on your citation style: APA: 3+ authors Chicago: 4+ authors (after first mention) Harvard: 4+ [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":47399,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[2375],"tags":[874],"new_categories":[],"new_tags":[],"series":[],"class_list":["post-2079","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grammar-language","tag-citation-style"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to use &quot;et al.&quot; in citations and references: APA, MLA, Chicago and Other Styles | Editage Insights<\/title>\n<meta name=\"description\" content=\"Learn when and how to use &quot;et al.&quot; in citations across APA, MLA, Chicago, and other styles. 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