Columbia subject headings:
Agriculture--Europe--History.
Feudalism--Europe.
Land tenure--Europe--History.
Peasants--Europe.
Harvard subject headings:
Agriculture--Europe--History
Feudalism--Europe
Land tenure--Europe--History.
Peasants--Europe
Princeton subject headings:
Agriculture--Europe--History.
Feudalism--Europe.
Land tenure--Europe--History.
Peasants--Europe.