Answered By: Jennifer Paris Last Updated: May 12, 2015 Views: 2010
Journal articles DO NOT have call numbers, which is a unique identifying system to allow easy location of a physical item (book, DVD, map, etc.) in the library. A Journal may be assigned a call number for easy location in the periodicals section of a library, but journals are almost always arranged on the shelf in alphabetical order by title anyway.
Some journal articles (but not all) do have a unique identifying number assigned to them, called a DOI (Digital Object Identifier). APA documentation style uses the DOI (when one is available) for an article that has been retrieved online (from a database or web site). To learn more about DOI, visit the DOI web site. For instructions on how to cite using DOI, see the Library's APA style & citation guide.