Columbia subject headings:
Italy--Antiquities--Guidebooks.
Umbria (Italy)--Antiquities--Guidebooks.
Umbria (Italy)--Guidebooks.
Harvard subject headings:
Archaeology--Italy--Umbria--Guidebooks.
Italy--Antiquities--Guidebooks.
Umbria (Italy)--Antiquities--Guidebooks.
Umbria (Italy)--Guidebooks.
Princeton subject headings:
Italy--Antiquities--Guidebooks.
Umbria (Italy)--Antiquities--Guidebooks.
Umbria (Italy)--Guidebooks.