Online guides:
The Purdue Online Writing Lab (OWL) covers writing and citation for MLA, APA, and Chicago Style.
The University of Georgia Libraries Citation Style Guides are relatively brief guides to the most common types of citations.
The American Political Science Association Style Manual
Citing Maps: Maps and Atlases (NCSU Library)
The library owns several style manuals to help you properly cite sources of information. The instructor may recommend a format for your research paper which will include any of the following:
The Writing Center at the University of North Carolina Chapel Hill has a number of guides, including:
Writing for Specific Fields: History
Writing for Specific Fields: Political Science
How to Write a Good History Essay from History Today
Reading, writing, and researching for history: a guide for college students by Patrick Rael at Bowdoin College