We would like you to use the APA Style Guide for your project:

APA (American Psychological Association) style is most commonly used to cite sources within the social sciences. This resource, revised according to the 6th edition, second printing of the APA manual, offers examples for the general format of APA research papers, in-text citations, endnotes/footnotes, and the reference page. For more information, please consult the Publication Manual of the American Psychological Association, (6th ed., 2nd printing).

NOTE: Just so you are aware, the American Political Science Association has a Style Manual for Political Science, revised August 2006 by the American Political Science Association Committee on Publications. The most prominent difference between APA and APSA citation styles are the in text citations. While APSA may be suitable for a thesis or dissertation, should you choose to take your studies in political science that far, APA is the most practical and efficient way to deliver your citation information in most of your undergraduate research.