The chapter begins with a short list: "the three functions of documentation".
The major reference styles discussed in the chapter are noted above by their short names. More fully, they are:
Which style should you use? It is not a matter of choice, it is a matter of what kind of work you are conducting, or what style is required by the authority you are submitting your work to. These styles are typically used for scholarly work, and for documenting the research of students. It is the responsibility of a student to determine which documentation style to use for papers written for each class. Documents submitted to professional and scholarly journals also must contain references in the appropriate style or those submissions may be rejected without review. Like the requirements of specific classes, the authority in charge of a journal may choose whatever style seems best. A writer should review the style requirements of the publication they are writing for before writing the document.
Different styles are used in different disciplines. The styles are varied enough that a writer should review the appropriate style before beginning work on a document that requires it.