Students sometimes find the following resources helpful.

Purdue OWL (Online Writing Center of Purdue University: This online resource includes many rules, as well as up-to-date citation guidelines for MLA, APA, and Chicago style.

Write Check: This fee-for-service ($7.95 per paper) sponsored by guides student writers to develop an original paper with its helpful plagiarism checker (and provides some editing tips as well).  

A Writer’s Reference (Hacker and Sommers): Learn more about the college-required handbook.