We have created some guides and collected additional web resources to help you with Chicago citation style.
Use the Chicago Manual of Style to look up any questions you have about Chicago. They have also created a guide that may answer some basic questions.
These guide were created by St. Kate's librarians to help with basic Chicago questions. The Quick Guide goes over the basics, which the Archives guide shows how to cite some archives materials in Chicago.
Purdue Owl also has useful resources. But note: For source citations, make sure you use the instructions under "notes-bibliography(NB)" NOT "author-date."