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So you have your journal article citation, but you are struggling to find the DOI (digital object identifier). Where is it listed? Don't worry. You're not alone. The DOI can be difficult to find, hopefully the tips below can help you locate a journal article DOI for APA 7th edition citations.
Places to find DOI:
ONE SEARCH: You can often copy and paste the title of the article into the basic "One Search" from the library homepage and then look at the provided APA citation (click on the article title, then look above the title for the quotation mark - then choose APA to see the citation)
Currently One Search is still using APA 6th edition, so it only lists the DOI without the https:// -- TO create the full DOI link, START with this: https://dx.doi.org then add a backslash and the number portion of the DOI.
So for example, if you look up this article in One Search: "Ethical Issues in Caring for Prison Inmates With Advanced Cancer" - you will find that it gives the DOI as this: doi:10.1097/NJH.0000000000000216, so you would remove the "doi:" and add "https://dx.doi.org" at the beginning and then follow it with the rest of the doi so the final link would look like this: https://dx.doi.org/10.1097/NJH.0000000000000216
The PDF title page: On a PDF, the DOI can often be found on the first page, usually underneath the title of the journal, sometimes alongside the volume/issue. Additionally, on other types of PDF's the DOI can be listed at the bottom of the page near the author information. In the example below, it is listed right under the journal header to the left. You may need add the http:// info to the front of this DOI, as shared above.
PUBMED: You can copy and paste the title of the article into PubMed, which also will list a DOI if one is available, to get the full https:// link, simply right click on the DOI and choose "copy link address" - and then paste into your paper, it will copy the entire http:// link.
The JOURNAL PUBLISHER WEBSITE: Lastly, I try going directly to the journal publisher website and looking up the article in their archives, or "previous issues" to see if they list the DOI there.
My DOI doesn't have an HTTPS://... what do I do?
You were able to locate the DOI, but it just says DOI and has a list of numbers and letters at the end... what do you do now?
Using https://dx.doi.org: You can create the full DOI link by adding https://dx.doi.org then add a backslash and the number portion of the DOI:
So for example, if you look up this article in Laupus Library's One Search: "Ethical Issues in Caring for Prison Inmates With Advanced Cancer" - you will find that it gives the DOI as this: doi:10.1097/NJH.0000000000000216, so you would remove the "doi:" and add "https://dx.doi.org" at the beginning and then follow it with the rest of the doi numbers and letters. The final link would look like this: https://dx.doi.org/10.1097/NJH.0000000000000216
Shortdoi.org: You can also use http://shortdoi.org/to quickly create the full DOI link, or a shortened version, which can be copied and pasted into your paper.
Once on Shortdoi.org - Copy and paste the DOI number that you have found into the white space, then click submit.
Shortdoi.org will automatically create a shortDOI that you can use, or you can also use the full DOI link that it shares beneath that:
Please note that NOT all journals are using DOI. When this is case you can either add the overall link to the publisher itself, or you can leave the DOI off of the citation, as you would for a print journal.