Columbia subject headings:
Harvard subject headings:
Averara (Italy)--History--Sources.
Averara (Italy)--Politics and government--Sources.
Law, Medieval--Italy--Averara--Sources.
Law--Italy--Averara--Sources.
Statutes--Italy--Averara--Sources.
Princeton subject headings:
Averara (Italy)--History--Sources.
Averara (Italy)--Politics and government--Sources.
Law, Medieval--Italy--Averara--Sources.
Law--Italy--Averara--Sources.
Statutes--Italy--Averara--Sources.