Here is a small selection of the Library writing and style guides. The Chicago Manual of Style, now in its 17th edition is the preferred style used by historians.
Chicago Manual of Style OnlineThe 17th edition of the Manual is the most current. The online version includes a Citation Quick Guide with examples. The Library's website offers a short introduction and overview to the Notes and Bibliography System commonly used in the humanities.
Brundage, Anthony. Going to the Sources: A Guide to Historical Research and Writing. Fifth edition. Chichester, West Sussex, UK: Wiley Blackwell, 2013.
Mabbett, Ian W. Writing History Essays. 2nd edition. London: Macmillan Education/Palgrave, 2016.
Storey, William Kelleher. Writing History: A Guide for Students. 4th ed. New York: Oxford University Press, 2013.
Cullen, Jim. Essaying the Past: How to Read, Write, and Think About History. 2nd ed. Chichester, West Sussex ; Malden, MA: Wiley-Blackwell, 2013.