00270nam a2200109Ia 4500082002300000100001900023245006600042260003200108300001000140500000500150700000500155  a338.10942bR962.HA  aRussell, E. J.  aHistory of agricultural sciences in Great Britain 1620-1954b  aLondonbAllen & Unwinc1966  a493p.  a  a