Turabian's Manual for Writers of Research Papers... (9th ed.) presents two basic documentation systems:
notes-bibliography style and author-date style (sometimes called reference list style).
The Turbian Quick Guide provides examples of the most commonly documented items, including websites.
Turabian styles are essentially the same as The Chicago Manual of Style (16th ed.), with slight modifications for the needs of student writers.
Chicago-Style Citation Quick Guide
Writing Literature Reviews by