Columbia subject headings:
City planning--Cross-cultural studies--Congresses.
City planning--France--Paris--Congresses.
City planning--Italy--Rome--Congresses.
City planning--New York (State)--New York--Congresses.
Harvard subject headings:
City planning--Congresses
City planning--France--Paris--Congresses.
City planning--Italy--Rome--Congresses.
City planning--New York (State)--New York--Congresses.
Princeton subject headings: