Answered By: Erin McDaniel
Last Updated: May 13, 2015     Views: 25

A DOI is an alphanumeric string that provides a permanent ID for documents. It is a required element for APA style references when available. Not all documents are assigned a DOI. For more informaiton, please view the Cite Web tab of our APA Style LibGuide, linked below. Also, visit Purdue Owl, also below.

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