Use these "cheat sheets" to find sample citations for a variety of source types. You'll see citations for journal articles, online resources, books, and more.
Ryan Library has books for each of the main styles (APA, MLA, ASA, Chicago, etc.) available in the Reference Area. Below are some specific examples:
PLNU's College Composition courses use the 9th Edition of The St. Martin's Handbook as a guide to research.
The section beginning on page 240 provides guidance for citing sources in MLA style.
The section beginning on page 287 provides guidance for citing sources in APA style.