Columbia subject headings:
Art, Italian--Italy--Norcia--Guidebooks.
Norcia (Italy)--Guidebooks.
Norcia (Italy)--History.
Harvard subject headings:
Art, Italian--Italy--Norcia--Guidebooks.
Norcia (Italy)--Guidebooks.
Norcia (Italy)--History.
Princeton subject headings:
Art--Italy--Norcia--Guidebooks.
Guidebooks.
Norcia (Italy)--History.