Columbia subject headings:
Genoa (Italy)--History--To 1339--Congresses.
Genoa (Italy)--History--To 1339--Sources--Congresses.
Harvard subject headings:
Genoa (Italy)--History--To 1339--Congresses.
Genoa (Italy)--History--To 1339--Sources--Congresses.
Princeton subject headings:
Cities and towns--Italy--Genoa--History--Congresses.
Genoa (Italy)--Civilization--Congresses.
Genoa (Italy)--History--To 1339--Sources--Congresses.