Columbia subject headings:
Law--Italy--Trequanda.
Harvard subject headings:
Law, Medieval--Sources.
Law--Italy--Trequanda--History--Sources.
Law--Italy--Trequanda--Sources.
Ordinances, Municipal--Italy--Trequanda.
Statutes--Italy--Trequanda.
Trequanda (Italy)--History--Sources.
Princeton subject headings:
Trequanda (Italy)--Law and legislation.