Q. Do I need to include a DOI number in the citations on my reference list?
APA style dictates that authors are named last name followed by initials; publication year goes between parentheses, followed by a period. The title of the article is in sentence-case, meaning only the first word and proper nouns in the title are capitalized. The periodical title is run in title case, and is followed by the volume number which, with the title, is also italicized.
If a DOI (Digital Object Identifier) has been assigned to the article that you are using, you should include this after the page numbers for the article.
Author, A. A., & Author, B. B. (Date of publication). Title of article. Title of Journal, volume number (issue number), page range. doi:0000000/000000000000
If no DOI has been assigned and you are accessing the periodical online, use the URL of the home page of the journal or publisher.
Author, A. A., & Author, B. B. (Date of publication). Title of article. Title of Journal, volume number (issue number), page range. Retrieved from http://www.journalhomepage.com/full/url/