Columbia subject headings:
Harvard subject headings:
Poor--Italy--Sicily--History--18th century.
Sicily (Italy)--Economic conditions
Sicily (Italy)--Social conditions
Wealth--Italy--Sicily--History--18th century.
Princeton subject headings:
Poor--Italy--Sicily--History--18th century.
Sicily (Italy)--Economic conditions.
Sicily (Italy)--Social conditions.
Wealth--Italy--Sicily--History--18th century.