Columbia subject headings:
Italy, Southern--Population--History.
Land use--Italy, Southern--History.
Physical geography--Italy, Southern--History.
Harvard subject headings:
Italy, Southern--Population--History.
Land use--Italy, Southern--History.
Physical geography--Italy, Southern--History.
Princeton subject headings:
Italy, Southern--Population--History.
Land use--Italy, Southern--History.
Physical geography--Italy, Southern--History.