The following websites have been designed to provide assistance with properly citing information and formatting papers using APA guidelines. Please consult these for help developing citations.
One of the best resources for citation help, Purdue University's English department maintains this website and keeps it up to date with the latest changes in citation. In addition to comprehensive guides on the APA style, Purdue OWL also provides suggestions to help you conduct research and incorporate that research into your academic paper.
The library has style guides located on reserve at the circulation desk for you to consult. Check them out for the official guidelines on properly formatting your citations.
The Little Seagull Handbook: with exercises by 
Publication manual of the American Psychological Association : the official guide to APA style by