In many cases, the American Political Science Association (APSA) citation style is prescribed in this subject area. Check your syllabus and/or with your instructor to confirm their preference.
A couple of other things to remember - make use of reference management software (options in the Organizing Information tab) and be careful to cite any information or data used (the University Writing Center can help answer questions).
The databases below provide extensive coverage of political topics, including international relations, law, public administration and policy, international relations or trade, comparative politics, developing nations, etc. published in journals, books, public documents, web sites, and policy reports.
The History databases are quite useful for looking at past events in International Affairs, Political Sciences and Economics.