Columbia subject headings:
Harvard subject headings:
Archaeology, Medieval.
Maremma (Italy)--Antiquities.
Maremma (Italy)--Guidebooks.
Princeton subject headings:
Architecture, Medieval--Italy--Grosseto (Province)--Guidebooks.
Grosseto (Italy : Province)--History--To 1500.
Guidebooks.
Maremma (Italy)--History--To 1500.