Columbia subject headings:
Architecture--Conservation and restoration--Italy.
Architecture--History.
Architecture--Italy.
De Angelis d'Ossat, Guglielmo, 1907-
Monuments--Conservation and restoration.
Harvard subject headings:
Architecture--Conservation and restoration--Italy
Architecture--History
Architecture--Italy
De Angelis d'Ossat, Guglielmo, 1907-
Princeton subject headings:
Architecture--History.
De Angelis d'Ossat, Guglielmo, 1907-
Monuments--Conservation and restoration.