Columbia subject headings:
Art--Italy--Perugia.
Borgo XX Giugno (Perugia, Italy)--Description and travel.
Perugia (Italy)--Description and travel.
Harvard subject headings:
Art, Italian--Italy--Perugia--Guidebooks.
Perugia (Italy)--Guidebooks.
San Pietro (Perugia, Italy)--Guidebooks.
Princeton subject headings:
Guidebooks.
Perugia (Italy)--Guidebooks.