You use two manuals in APA Style. The Publication Manual of the APA, 6th ed. contains the core elements of APA style. It should always be the primary resource you use. The APA Style Guide to Electronic References is a supplemental guide; it covers formatting requirements for references for electronic resources, such as websites.
The APA Style Guide to Electronic References is available online, but under our licensing students and faculty are allowed to print one copy for person use.
Online Guides to Using APA Style
APA Style Blog : This blog is the official companion to the APA Manual and is published by APA experts. Posts deal with specific situations in references, grammar, and other topics.
APA Style Help - Lists resources that can help with APA Style, such as FAQ and other learning resources.
APA Formatting and Style Guide (Purdue OWL)
APA Citation Style Guide (Long Island University Post)
Digital Object Identifiers: The APA Style Manual requires that the Digital Object Identifier (DOI) be added, if available.
DOI Look-up: CrossRef provides a free service that allows you to look up whether a journal article has been assigned a DOI.
Additional information about the DOI System: http://www.doi.org/