This American Psychological Association tutorial introduces students to APA Style, including fomatting papers, citing sources, and references.
These 2-page guides are also available in print in the Library.
From Purdue University's Online Writing Lab (OWL)
This manual is the authority on the APA Style. The GCC Library has 2 copies of this book. One is available for checkout. The other is in the Reference collection (cannot be checked out, but always available for use in the Library. Ask for it at the Reference Desk).
EasyBib - Guides to MLA, APA, and Chicago Styles