Columbia subject headings:
Harvard subject headings:
Agriculture--Europe--History
Europe--Rural conditions.
Europe--Social conditions--To 1492.
Feudalism--Europe--History
Land tenure--Europe--History.
Middle Ages.
Peasants--Europe--History
Villages--Europe--History.
Princeton subject headings:
Agriculture--Europe--History.
Europe--Rural conditions.
Europe--Social conditions--To 1492.
Feudalism--Europe--History.
Peasants--Europe--History.
Villages--Europe--History.