Columbia subject headings:
City planning--Congresses.
City planning--Italy--Congresses.
Monasteries--Congresses.
Monasteries--Italy--Congresses.
Suburbs--Congresses.
Suburbs--Italy--Congresses.
Harvard subject headings:
City planning--Congresses
City planning--Italy--Congresses
Monasteries--Congresses.
Monasteries--Italy--Congresses.
Suburbs--Congresses.
Suburbs--Italy--Congresses.
Princeton subject headings: