Columbia subject headings:
Harvard subject headings:
England--Social conditions--1066-1485.
Great Britain--History--John, 1199-1216
Great Britain--Politics and government--1154-1399.
Magna Carta.
Princeton subject headings:
England--Social conditions--1066-1485.
Great Britain--History--John, 1199-1216.
Great Britain--Politics and government--1154-1399.