The Online Writing Lab (OWL) at Purdue University houses writing resources and instructional material, and is provided as a free service of the Writing Lab at Purdue. Reference examples use most current edition of the APA Style Guide.

Website published by the American Psychological Association to assist users writing with APA style

The Basics of APA Style from the American Psychological Association website

The official Publication Manual of the American Psychological Association, Seventh Edition. This is in-library use only.