Columbia subject headings:
Cadastres--Italy--History--Congresses.
Cities and towns--Italy--History--Congresses.
Land tenure--Italy--History--Congresses.
Land use--Italy--History--Congresses.
Harvard subject headings:
Cadastres--Italy--History--Congresses.
Cities and towns--Italy--History--Congresses.
Land tenure--Italy--History--Congresses.
Land use--Italy--History--Congresses.
Princeton subject headings: