The Chicago Manual of Style is also sometimes used in the humanities. It consists of two documentation systems, notes-bibliography and author-date. Check with your instructor about which system they prefer.
A manual for writers of research papers, theses, and dissertations : Chicago Style for students and researchers MH Reference LB2369 .T8 2013
An annotated bibliography contains your list of references, properly cited, with additional notes following each reference. When working on a research paper or project, building a bibliography with notes that reflect on how each source could be used for that paper or project can be a very helpful practice.
There are many good sample annotated bibliographies online and explanations of how to build them. A couple of worthwhile examples: