When you use the words, ideas, or creations of someone else, cite them. To make it easier to keep track of your sources, try a citation tool like Zotero. Not sure how to properly format your citations? The Citation Guide gives you detailed guidelines for all of the major citation styles. Political Science generally uses Chicago / APSA style.
Notes & Bibliography System
Use this system if you want to use footnotes. More common in arts & humanities fields.
Use this system if you are mostly using in-text, parenthetical citations (not footnotes). More common in sciences and social sciences.
Quick Guide to Chicago
Gives quick examples for both systems
Not sure which system to use?
Ask your professor.
Watch how easy it is to add references to your paper using Zotero and Microsoft Word.