Columbia subject headings:
Art, Italian--Conservation and restoration--Italy--Bettona.
Art--Conservation and restoration.
Bettona (Italy)--Description and travel.
Harvard subject headings:
Art, Italian--Conservation and restoration--Italy--Bettona.
Art--Conservation and restoration
Art--Conservation and restoration--Italy--Bettona.
Bettona (Italy)--Description and travel.
Princeton subject headings:
Art, Italian--Italy--Bettona--Conservation and restoration.
Art, Medieval--Italy--Bettona--Conservation and restoration.
Christian art and symbolism--Medieval, 500-1500--Italy--Bettona--Conservation and restoration.