Columbia subject headings:
Harvard subject headings:
Architecture--Italy--Guidebooks.
Cultural property--Protection--Italy.
Fondo per l'ambiente italiano.
Historic buildings--Italy--Guidebooks.
Italy--Pictorial works.
Mansions--Italy--Guidebooks.
Palaces--Italy--Guidebooks.
Princeton subject headings:
Fondo per l'ambiente italiano.
Guidebooks.
Historic buildings--Italy--Guidebooks.
Italy--Description and travel.
Italy--Guidebooks.