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Finding a DOI

APA 6th edition now requires the addition of DOI numbers. A DOI or Digital Object Identifier is a unique number that allows the establishment of a permanent link to an article. When a DOI number is present, the database name and URL are left out. To find a DOI, try the following:

Keep in mind that not all publishers have registered with the International DOI Foundation, so there may not be a DOI for your article. If you cannot find one, then use the URL in the citation.

Last updated March 3, 2010 by Laura Pope Robbins