Columbia subject headings:
Agricultural contracts--Italy--Sicily--History.
Farm tenancy--Italy--Sicily--History.
Land tenure--Italy--Sicily--History.
Harvard subject headings:
Agricultural contracts--Italy--Sicily--History.
Farm tenancy--Italy--Sicily--History.
Land tenure--Italy--Sicily--History.
Princeton subject headings:
Agricultural contracts--Italy--Sicily--History.
Farm tenancy--Italy--Sicily--History.
Land tenure--Italy--Sicily--History.