Most databases have a Cite This button (it may just look like a double quote: ") that will generate a citation for you. It's always a good idea, however, to double check the formatting. The guides below provide useful examples to follow.
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A great resource for developing the parameters of your research (ch 2.1.3-4) and a solid argument (ch 5). It also includes extensive documentation of Chicago style for formatting your paper and citations. There's even a section on managing anxiety!
The Chicago Manual of Style by 
A Manual for Writers of Research Papers, Theses, and Dissertations by 
