Columbia subject headings:
Venice (Italy)--Economic conditions--Congresses.
Venice (Italy)--Social conditions--Congresses.
Harvard subject headings:
Architecture--Conservation and restoration--Italy--Venice--Congresses.
Regional planning--Italy--Venice--Congresses.
Venice (Italy)--Buildings, structures, etc.--Congresses.
Venice (Italy)--Economic conditions--Congresses.
Venice (Italy)--Social conditions--Congresses.
Princeton subject headings:
Venice (Italy)--Economic conditions--Congresses.
Venice (Italy)--Social conditions--Congresses.