Properly acknowledge all of your sources, even if you did not cite the source directly in your final research project.
The Chicago Manual of Style is the preferred citation style for this class; however, if you choose to use another citation style, just make sure you use it consistently. See the library's page on Citing Your Sources for more information and for links to tip sheets on the various citation styles.
You may find it useful to use a citation manager, such as RefWorks or Zotero, to help you organize and keep track of all your sources. These will help you to properly cite all your sources, and using one is highly recommended. See our page on Citation Management for more information.