Chicago (or the closely related Turabian) style is the most frequently used style for the discipline of history. It has two variations, footnote + bibliography and parenthetical citation + works-cited list. Dr. Wigger prefers that you use footnote + bibliography style.
Ellis Library has a copy of the latest edition of Turabian in the Ready Reference section.
Here is a snapshot of part of a paper, written in fake Latin, that uses the Turabian note + blbliography style. There are numbered footnotes appearing on each page.