Columbia subject headings:
Harvard subject headings:
Florence (Italy)--Civilization--Congresses.
Florence (Italy)--Relations--Italy--Venice--Congresses.
Venice (Italy)--Civilization--To 1797--Congresses.
Venice (Italy)--Relations--Italy--Florence--Congresses.
Princeton subject headings:
Florence (Italy)--Civilization--Congresses.
Florence (Italy)--Relations--Italy--Venice--Congresses.
Venice (Italy)--Civilization--Congresses.
Venice (Italy)--Relations--Italy--Florence--Congresses.