Columbia subject headings:
Florence (Italy)--History--To 1421.
Florence (Italy)--Social conditions.
Harvard subject headings:
Conti, Elio.
Florence (Italy)--Economic conditions--Congresses.
Florence (Italy)--History--To 1421--Congresses.
Florence (Italy)--Politics and government--To 1421--Congresses.
Princeton subject headings:
Conti, Elio.
Florence (Italy)--Economic conditions--Congresses.
Florence (Italy)--History--To 1421--Congresses.
Florence (Italy)--Politics and government--To 1421--Congresses.