{"id":3825,"date":"2022-11-14T02:35:30","date_gmt":"2022-11-14T02:35:30","guid":{"rendered":"https:\/\/blog.wordvice.com\/?p=3825"},"modified":"2023-04-11T22:42:23","modified_gmt":"2023-04-11T22:42:23","slug":"what-is-a-doi-apa-mla-chicago-format","status":"publish","type":"post","link":"https:\/\/wordvice.com\/blog\/what-is-a-doi-apa-mla-chicago-format\/","title":{"rendered":"What is a DOI? | APA, MLA, Chicago Formats"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14023334\/magnifying-glass-1024x768.jpg\" alt=\"magnifying glass sitting on top of colorful file folders\" class=\"wp-image-3829\" width=\"680\" height=\"510\" srcset=\"https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14023334\/magnifying-glass-1024x768.jpg 1024w, https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14023334\/magnifying-glass-300x225.jpg 300w, https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14023334\/magnifying-glass-768x576.jpg 768w, https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14023334\/magnifying-glass-1536x1152.jpg 1536w, https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14023334\/magnifying-glass.jpg 1672w\" sizes=\"(max-width: 680px) 100vw, 680px\" \/><figcaption class=\"wp-element-caption\">A DOI makes it significantly easier for researchers to locate and cite published sources.<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>What is a DOI and what does it do?<\/strong><\/h2>\n\n\n\n<p>You have probably seen reference lists with citations that end in a long number preceded by the abbreviation \u201cdoi,\u201d or been told that your list is missing those. But what does \u201cDOI\u201d stand for? A DOI, meaning digital object identifier, is a unique alphanumeric string that is assigned (standardized by the <a href=\"https:\/\/www.doi.org\/index.html\">International DOI foundation<\/a>) to electronic journal articles, government reports, books, and other digital items that need to be identified in databases and on websites. Unlike URLs, DOIs never change, and many journals and citation styles now generally recommend including them in reference lists.<\/p>\n\n\n\n<p>All DOIs start with the number 10 followed by a period, but they can be formatted in different ways. The correct format for your manuscript depends on the DOI citation style the target journal wants you to apply (and\/or other <a href=\"https:\/\/wordvice.com\/blog\/manuscript-format-journal-author-instructions\/\">author instructions<\/a>):<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>doi:10.4324\/9780203449530<\/p><p><a href=\"https:\/\/dx.doi.org\/10.4324\/9780203449530\">https:\/\/dx.doi.org\/10.4324\/9780203449530<\/a><\/p><p><a href=\"https:\/\/doi.org\/10.1016\/0014-4886(85)90123-2\">https:\/\/doi.org\/10.1016\/0014-4886(85)90123-2<\/a><\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Where is the DOI located?<\/strong><\/h2>\n\n\n\n<p>If a journal publishes DOIs, then you will usually find them somewhere on the first page of an article, probably in the header or footer.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14020535\/image.png\" alt=\"how to locate the DOI at the top of an article\" class=\"wp-image-3826\" width=\"714\" height=\"627\" srcset=\"https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14020535\/image.png 886w, https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14020535\/image-300x263.png 300w, https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14020535\/image-768x674.png 768w\" sizes=\"(max-width: 714px) 100vw, 714px\" \/><\/figure><\/div>\n\n\n<p>If you cannot find the DOI on the article itself, try clicking on \u201ccite this article\u201d, or search the journal website\u2014it might be listed somewhere there instead.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14020600\/image-1-1024x831.png\" alt=\"what is a DOI, APA MLA Chicao formats\" class=\"wp-image-3827\" width=\"723\" height=\"586\" srcset=\"https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14020600\/image-1-1024x831.png 1024w, https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14020600\/image-1-300x243.png 300w, https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14020600\/image-1-768x623.png 768w, https:\/\/ee-blog-cdn.wordvice.com\/us\/wp-content\/uploads\/2022\/11\/14020600\/image-1.png 1039w\" sizes=\"(max-width: 723px) 100vw, 723px\" \/><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>How to find the DOI (DOI lookup)<\/strong><\/h3>\n\n\n\n<p>There is no central DOI system that lists them all, but web search engines will usually show DOI names if you search for an article\/book by title, name, or topic. If an article has a DOI, the number should be listed in the information about the article, which can be called &#8220;Detailed Record&#8221;, &#8220;Abstract&#8221;, or &#8220;Abstract\/Details&#8221;. If you don&#8217;t see such an information record, click on the article title page.&nbsp;<\/p>\n\n\n\n<p>If all else fails, you can look for a DOI using the <a href=\"https:\/\/www.crossref.org\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Crossref website<\/a>. Crossref is an organization that assigns DOIs for research articles. If you do not find a DOI for an article on Crossref, you can safely assume that the article you are looking for does not have one. Sometimes<a href=\"https:\/\/library.csustan.edu\/doi-lookup\"> university libraries provide their own doi-lookup service<\/a> or a how-to page with instructions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>APA Style Guidelines for DOIs<\/strong><\/h2>\n\n\n\n<p>Because the majority of publications are available and accessed online these days, reference list entries usually end with a DOI or, if an article doesn&#8217;t have one, a URL (uniform resource locator).<\/p>\n\n\n\n<p>An APA citation for a journal article (consisting of author names, publication year, title, journal name, volume (and issue) number, and complete page range) should, whenever available, include a DOI. If you cannot find a DOI and the article was accessed through a website other than a database (e.g. the journal website), provide the URL instead\u2014if there is no &#8220;share&#8221; button or the like, just copy the address bar of your browser directly into your reference list. If an article has no DOI and you found it on an academic database or read it in print format, then just omit the DOI number. And if an online article you want to cite has both a DOI and a URL, include the DOI only. No other alphanumeric identifiers (such as the International Standard Book Number (ISBN) or the International Standard Serial Number (ISSN)) should be included in APA Style references.<\/p>\n\n\n\n<p><strong>Pro-tip 1:<\/strong> Since some databases and archives require a login or subscription, provide the URL of the database or archive home page or login page instead of the URL for such works. The APA website explains such details <a href=\"https:\/\/apastyle.apa.org\/style-grammar-guidelines\/references\/database-information\">here<\/a> and offers advice for when an article has no DOI and the URL is no longer working or no longer provides readers access <a href=\"https:\/\/apastyle.apa.org\/style-grammar-guidelines\/references\/missing-information\">here<\/a>.<\/p>\n\n\n\n<p><strong>Pro-tip 2:<\/strong> Manually check the DOIs in your reference list to make sure they all lead to the correct article before submitting your manuscript!<\/p>\n\n\n\n<p>The APA also recommends that you:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>copy-paste DOIs directly from your browser into your reference list to avoid errors&nbsp;<\/li>\n\n\n\n<li>do not change capitalization or punctuation<\/li>\n\n\n\n<li>do not add line breaks unless your word-processing program automatically does that<\/li>\n\n\n\n<li>do not add a period after the DOI or URL because this may affect the link<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DOI formatting for APA Style<\/strong><\/h3>\n\n\n\n<p>In <a href=\"https:\/\/apastyle.apa.org\/style-grammar-guidelines\/references\/dois-urls\">APA Style reference lists<\/a>, both DOIs and URLs should be provided as hyperlinks, beginning with \u201chttp:\u201d or \u201chttps:\u201d. You don\u2019t need to add \u201cretrieved from\u201d or \u201caccessed through\u201d, because hyperlinks directly lead to the article. You can add these links to your list by either using the default Word settings (usually blue font, underlined) or writing them in plain text.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DOI example in APA Style<\/strong><\/h3>\n\n\n\n<p>The recommended format for DOIs in reference lists is <strong>https:\/\/doi.org\/xxxxx<\/strong>, with the \u201cxxxxx\u201d referring to the specific DOI number of the linked article.<\/p>\n\n\n\n<p>While formats have changed over time (e.g., \u201chttp:\/dx.doi.org\/\u201d or simply \u201cDOI:\u201d before the number used to be common ways of presenting them in older publications), the APA now recommends standardizing DOIs into the current preferred format.&nbsp;<\/p>\n\n\n\n<p>For example, even if an earlier published article has the DOI http:\/dx.doi.org\/10.1037\/a0040251, change it to <a href=\"https:\/\/doi.org\/10.1037\/a0040251\">https:\/\/doi.org\/10.1037\/a0040251<\/a> to make sure it is up to date and in line with the current standards.<\/p>\n\n\n\n<p>A full APA citation with a DOI looks like this:<br><br>Gatz, M., Smyer, M. A., &amp; DiGilio, D. A. (2016). Psychology\u2019s contribution to the well-being of older americans. <em>American Psychologist, 71<\/em>(4), 257\u2013267. <a href=\"https:\/\/doi.org\/10.1037\/a0040251\">https:\/\/doi.org\/10.1037\/a0040251<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>MLA Style Guidelines for DOIs<\/strong><\/h2>\n\n\n\n<p>The <a href=\"https:\/\/style.mla.org\/\">MLA Style Guidelines<\/a> also state to include DOIs in reference lists, but recommend the simple format \u201cdoi:\u201d (e.g. doi:10.1037\/a0040251). If an article has no DOI, then include a stable URL, such as www.jstor.org\/stable\/43832354)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DOI example in MLA Style<\/strong><\/h3>\n\n\n\n<p>Gatz, Margaret, Michael A. Smyer, and Deborah A. DiGilio. &#8220;Psychology\u2019s contribution to the well-being of older americans.&#8221; <em>American Psychologist<\/em> 71.4 (2016): 257. <a href=\"https:\/\/doi.org\/10.1037\/a0040251\">doi:10.1037\/a0040251<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Chicago Style Guidelines for DOIs<\/strong><\/h2>\n\n\n\n<p>The <a href=\"https:\/\/www.chicagomanualofstyle.org\/tools_citationguide\/citation-guide-2.html\">Chicago Manual of Style<\/a>, like most other style guides, also suggests that references to online sources should include a DOI if possible, a URL if not, or some other piece of information (e.g., a database title) that allows the reader to locate the online source of an article. The preferred format for Chicago Style publications is <a href=\"https:\/\/doi.org\/10.1086\/690235\">https:\/\/doi.org\/10.1086\/690235<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>DOI example in Chicago Style<\/strong><\/h3>\n\n\n\n<p>Keng, Shao-Hsun, Chun-Hung Lin, and Peter F. Orazem. &#8220;Expanding college access in Taiwan, 1978\u20132014: effects on graduate quality and income inequality.&#8221; <em>Journal of Human Capital<\/em> 11, no. 1 (2017): 1-34. <a href=\"https:\/\/doi.org\/10.1086\/690235\">https:\/\/doi.org\/10.1086\/690235<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Frequently Asked Questions about DOI<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How do I find the DOI of a journal article?<\/strong><\/h3>\n\n\n\n<p>You can usually see the DOI (starting with \u201cdoi.org\u201d or \u201cDOI:\u201d) somewhere on the first page of an article when you open it on any academic database. If you don&#8217;t see such a number, then look for a link that says &#8220;cite article&#8221; or &#8220;details&#8221;.<\/p>\n\n\n\n<p>If you cannot find an article&#8217;s DOI anywhere, your university library or websites like <a href=\"https:\/\/www.crossref.org\/\">Crossref<\/a> can locate it when you search by author, title, journal, and\/or year of publication.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Should I use a URL or DOI in a citation?<\/strong><\/h3>\n\n\n\n<p>As a rule of thumb, use a DOI whenever it is available and a URL if even Crossref.org does not find a DOI for the article you want to cite.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How do I format a DOI in APA Style?<\/strong><\/h3>\n\n\n\n<p>Add the DOI to the end of the citation, preceded by \u201chttps:\/\/doi.org\/\u201d:<\/p>\n\n\n\n<p>Gatz, M., Smyer, M. A., &amp; DiGilio, D. A. (2016). Psychology\u2019s contribution to the well-being of older americans. <em>American Psychologist, 71<\/em>(4), 257\u2013267. <a href=\"https:\/\/doi.org\/10.1037\/a0040251\">https:\/\/doi.org\/10.1037\/a0040251<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How do I format a DOI in MLA Style?<\/strong><\/h3>\n\n\n\n<p>In MLA style citations, the DOI also follows the full citation, but a simple \u201cdoi\u201d is preferred:<\/p>\n\n\n\n<p>Gatz, Margaret, Michael A. Smyer, and Deborah A. DiGilio. &#8220;Psychology\u2019s contribution to the well-being of older americans.&#8221; <em>American Psychologist<\/em> 71.4 (2016): 257. <a href=\"https:\/\/doi.org\/10.1037\/a0040251\">doi:10.1037\/a0040251<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How do I format a DOI in Chicago Style?<\/strong><\/h3>\n\n\n\n<p>Chicago Style reference list entries follow a different style overall but, like APA citations, end in a DOI preceded by \u201chttps:\/\/doi.org\/\u201d:&nbsp;<\/p>\n\n\n\n<p>Keng, Shao-Hsun, Chun-Hung Lin, and Peter F. Orazem. &#8220;Expanding college access in Taiwan, 1978\u20132014: effects on graduate quality and income inequality.&#8221; <em>Journal of Human Capital<\/em> 11, no. 1 (2017): 1-34. <a href=\"https:\/\/doi.org\/10.1086\/690235\">https:\/\/doi.org\/10.1086\/690235<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Make sure your manuscript\/paper is submission ready!&nbsp;<\/strong><\/h2>\n\n\n\n<p>As always, our <a href=\"https:\/\/wordvice.com\/about-us\/professional-editors\/\">Wordvice Editors<\/a> and <a href=\"https:\/\/wordvice.com\/\">proofreading services<\/a> are there to help you improve the flow and expression of your academic text and ensure it conforms to the required style. Get <a href=\"https:\/\/wordvice.com\/services\/academic-editing\">paper editing<\/a> or <a href=\"https:\/\/wordvice.com\/services\/academic-editing\">manuscript editing<\/a> for your work and submit your research documents to journals with confidence.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is a DOI and what does it do? You have probably seen reference lists with citations that end in a long number preceded by the abbreviation \u201cdoi,\u201d or been told that your list is missing those. But what does \u201cDOI\u201d stand for? A DOI, meaning digital object identifier, is a unique alphanumeric string that [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":3828,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,25],"tags":[17,38,18,39,191],"class_list":["post-3825","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-academic","category-style-and-formatting","tag-academic-writing-tips","tag-journal-publication","tag-manuscript-writing","tag-research-writing","tag-style-formatting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is a DOI? | APA, MLA, Chicago Formats - Wordvice<\/title>\n<meta name=\"description\" content=\"A DOI identifies an article or ebook. DOIs have replaced URLs in most citations and references. 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