From SU Libraries: Easybib Academic Edition
You always have the most control over the accuracy of your citations when you do it by hand using the selected style manual (below).
You may also use a citation style determined by the Political Science Department based on the fifteenth edition of The Chicago Manual of Style (Chicago: University of Chicago Press, 2003) as is detailed here or download below.
The Purdue OWL is a great online tool for multiple citation styles and formatting examples.
Purdue OWL - Formatting for MLA