Columbia subject headings:
Harvard subject headings:
Agriculture--Italy--Sardinia--History.
Sardinia (Italy)--History--456-1297.
Sardinia (Italy)--Rural conditions.
Princeton subject headings:
Agriculture--Italy--Sardinia--History.
Land use--Italy--Sardinia--History.
Sardinia (Italy)--History--456-1297.
Sardinia (Italy)--Rural conditions.