Columbia subject headings:
Agricultural systems--England--History--To 1500.
England--Antiquities.
England--Historical geography.
England--Rural conditions.
Feudalism--England.
Great Britain--History--Medieval period, 1066-1485.
Land tenure--England--History--To 1500.
Harvard subject headings:
Agricultural systems--England--History--To 1500.
England--Antiquities.
England--Historical geography.
England--Rural conditions.
Feudalism--England.
Great Britain--History--Medieval period, 1066-1485.
Land tenure--England--History--To 1500.
Princeton subject headings:
Agricultural systems--England--History--To 1500.