Columbia subject headings:
Italy--Politics and government--476-1268.
Italy--Social conditions.
Social structure--Italy--History--To 1500.
Harvard subject headings:
Italy--Politics and government--476-1268.
Italy--Social conditions.
Social structure--Italy--History--To 1500.
Princeton subject headings:
Italy--Politics and government--476-1268.
Italy--Social conditions.
Social structure--Italy--History--To 1500.