Columbia subject headings:
Architecture--Conservation and restoration--Italy--Rome.
Palazzo del Quirinale (Rome, Italy)--Conservation and restoration.
Rome (Italy)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Conservation and restoration--Italy--Rome.
Art--Conservation and restoration--Italy--Rome.
Palaces--Conservation and restoration--Italy--Rome.
Palazzo del Quirinale (Rome, Italy)--Conservation and restoration.
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Art--Conservation and restoration--Italy--Rome.
Palaces--Conservation and restoration--Italy--Rome.
Palazzo del Quirinale (Rome, Italy)--Conservation and restoration.
Rome (Italy)--Buildings, structures, etc.