Columbia subject headings:
Italy--Social conditions--1268-1559.
Oligarchy--Italy--Turin.
Turin (Italy)--History.
Harvard subject headings:
Italy--Social conditions--1268-1559.
Oligarchy--Italy--Turin.
Turin (Italy)--History.
Princeton subject headings:
Turin (Italy)--Economic conditions.
Turin (Italy)--Politics and government.
Turin (Italy)--Social conditions.