Columbia subject headings:
Architecture--Italy--Mugello Valley--Guidebooks.
Architecture--Italy--Sieve River Valley--Guidebooks.
Mugello Valley (Italy)--Guidebooks.
Sieve River Valley (Italy)--Guidebooks.
Harvard subject headings:
Architecture--Italy--Mugello Valley--Guidebooks.
Architecture--Italy--Sieve River Valley--Guidebooks.
Mugello Valley (Italy)--Guidebooks.
Sieve River Valley (Italy)--Guidebooks.
Princeton subject headings:
Architecture--Italy--Mugello Valley.
Mugello Valley (Italy)--Description and travel.