This is Polytechnique Montreal Library's citation guide according to the APA 7th style, based on the Publication Manual of the American Psychological Association (2020).
According to APA, the DOI (Digital Object Identifier) is a very important element of the reference of an electronic document. If available, it is strongly recommended you include it in the reference. If the DOI is not available, mention the URL of the document. For example, the reference of an electronic journal article should generally include the title of the article, the title of the journal, the pages, the author(s), the publication year, the volume, the issue number, and the DOI.
For EndNote users, the Library has created the styles APA7th_fr_PolyMTL in French and APA7th_PolyMTL in English (coming soon, see our EndNote guide).