APA style asssistance from the American Psychological Association

APA Reference Style Guide

From Northern Michigan University - Examples reflect the 6th edition, 2nd printing (© 2010) of the Publication ManualAPA Style Guide to Electronic References, 6th ed. (© 2012); and APA Style

Purdue OWL (Purdue Online Writing Lab)

Direct link to Purdue OWL APA format section