Citation styles: the official guides
Aggregazione dei criteri
Here there are the official guides and some non official but well done guides.
1. Notes and Bibliography stles (Laws and Humanities)
Stile Chicago notes and bibliography (Chicago B)
The Chicago manual of style. Notes and Bibliography: Sample Citations
Chicago Manual of Style Guidelines: Quickstudy Digital Guide
Stile Chicago: sistema note-bibliografia
Stile OSCOLA (Laws)
Oxford University Standard for the Citation of Legal Authorities, 4. ed.