Kate L. Turabian's Manual for Writers of Research Papers, Theses, and Dissertations follows the two Chicago Manual of Style patterns of documentation but offers slight modifications suited to student texts.
Also, A Pocket Guide to Writing History (8th edition), also known as "Rampolla," is available in the Reference section on the first floor of the Library (Ref 907.2 R148a). This writing guide uses Turabian style.