Columbia subject headings:
Agricultural contracts--Italy--History.
Agriculture--Economic aspects--Italy--History.
Peasants--Italy--History.
Harvard subject headings:
Agricultural contracts--Italy--History.
Agriculture--Economic aspects--Italy--History.
Italy--Rural conditions.
Peasants--Italy--History.
Princeton subject headings:
Agricultural contracts--Italy--History.
Agriculture--Economic aspects--Italy--History.
Peasants--Italy--History.