Columbia subject headings:
Harvard subject headings:
Sicily (Italy)--Economic conditions
Sicily (Italy)--Economic conditions--History.
Sicily (Italy)--History--1282-1409
Sicily (Italy)--Social conditions
Sicily (Italy)--Social conditions--History.
Princeton subject headings:
Sicily (Italy)--Commerce--History.
Sicily (Italy)--Economic conditions.
Sicily (Italy)--History--1282-1409.
Sicily (Italy)--History--15th-18th centuries.
Sicily (Italy)--Social conditions.