Columbia subject headings:
Selva (Italy)--History.
Harvard subject headings:
Cultural property--Protection--Italy--Siena region.
La Selva (Italy)--Description and travel.
Monteroni d'Arbia (Italy)
Murlo (Italy)
Natural areas--Italy--Siena.
Natural areas--Italy--Tuscany.
Natural history--Italy--Siena region.
Siena (Italy : Province)--Antiquities.
Siena (Italy : Province)--Church history.
Siena (Italy : Province)--History.
Siena region (Italy)--History, Local.
Vegetation surveys--Italy--Siena.
Princeton subject headings:
Forest reserves--Italy--Siena (Province).
Natural areas--Italy--Siena (Province).
Siena (Italy : Province)--Antiquities.
Siena (Italy : Province)--Church history.
Siena (Italy : Province)--History.
Vegetation surveys--Italy--Siena (Province).