00256nam a2200109Ia 4500082002200000100001700022245004800039260003400087300001500121500000500136700000500141  a338.10942bJ76.AI  aJones, E. L.  aAgriculture and the industrial revolutionb  aOxfordbBasil Blackwellc1974  axiv, 233p.  a  a