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Psychology: APA Style

American Psychological Association

American Psychological Association

Citation Styles

Containing the MLA Handbook, MLA Guide to Digital Literacy, MLA Guide to Undergraduate Research in Literature

OWL - Purdue Online Writing Lab

What is a DOI?

Many citation styles have begun using Digital Object Identifiers at the end of the citation - when available.

DOIs are unique codes that identify an electronic document, much like a social security number identifies a person. Additionally, DOIs can be used to find the document on the internet - usually at the publisher's web site.

For more information on DOIs, check out our DOI page.