History typically uses Chicago style, as do some Humanities, Social Sciences, and Physical & Natural Sciences disciplines.
Chicago Style
Chicago-Style Citation Quick Guide
Presents sample citations for two basic documentation systems: (1) notes and bibliography and (2) author-date.
Source: The Chicago Manual of Style Online, The University of Chicago
The venerable, time-tested guide to style, usage, and grammar--an indispensable reference informing the editorial canon with sound, definitive advice. Now in its 18th edition!
Turabian Style
Turabian Style Guide
Presents basic examples for both notes-bibliography style (or simply bibliography style) and parenthetical citations–reference list style (or reference list style).
Source: Kate L. Turabian and The University of Chicago