Choose a citation style appropriate to your subject matter. If you are unsure which style to use, consult your professor.
Acknowledging other people’s words and ideas which you use in your writing increases your credibility and allows readers to locate your sources. On the other hand, failing to cite your sources is a serious violation of the University of Maryland's Code of Academic Integrity.
The online guides linked below provide basic directions and examples for common citation needs, as well as information on where to go for more help.