00295nam a2200085Ia 4500008004100000082002500041245007900066260004700145650001700192220204s9999    xx            000 0 und d  a632.52(410)1956bLON 0aProceedings of the third British weed control conference 1956. V 1 and V 2  aLondonbBritish Weed control councilc1956  aWeed control