Columbia subject headings:
Art, Italian--Guidebooks.
Art--Italy--Spoleto--Guidebooks.
Pinacoteca comunale di Spoleto--Guidebooks.
Harvard subject headings:
Art--Italy--Spoleto--Catalogs.
Pinacoteca comunale di Spoleto--Catalogs.
Princeton subject headings:
Art--Italy--Spoleto--Catalogs.
Pinacoteca comunale di Spoleto--Catalogs.