Columbia subject headings:
Harvard subject headings:
Genoa (Italy)--Buildings, structures, etc.
Palaces--Italy--Genoa--Conservation and restoration.
Palaces--Italy--Genoa--Guidebooks.
Palazzo ducale (Genoa, Italy)--Guidebooks.
Princeton subject headings:
Genoa (Italy)--Buildings, structures, etc.--Conservation and restoration.
Palaces--Italy--Genoa--Conservation and restoration.
Palazzo ducale (Genoa, Italy)--Conservation and restoration.