Columbia subject headings:
Cultural property--Protection--Italy--Congresses.
Land use, Rural--Italy--Congresses.
Landscape protection--Italy--Congresses.
Regional planning--Italy--Congresses.
Harvard subject headings:
Cultural property--Protection--Italy--Congresses
Land use, Rural--Italy--Congresses.
Landscape protection--Italy--Congresses.
Regional planning--Italy--Congresses.
Princeton subject headings:
Cultural property--Protection--Italy--Congresses.
Land use, Rural--Italy--Congresses.
Landscape protection--Italy--Congresses.
Regional planning--Italy--Congresses.