Kate Turabian,
A Manual for Writers of Term Papers, Theses, and Dissertations, 5th ed. (Chicago:
University of Chicago, 1987), available in library, suggested only.
Richard Marius, Writing About History (Glenview, Ill.: Scott,
Foresman and Co., 1989), suggested only.
Elements of Style
William Strunk wrote a little guide on common writing errors back in 1918. It's still one of
the best around.