00401nam a2200133Ia 4500008004100000082001500041100002100056245006100077260002700138300001000165600004100175600003400216650001700250140224s9999    xx            000 0 und d  a632.954 M5  aGwynne, David C.  aWeed biology and control in agriculture and horticulture  aLondonbBatsfordc1985  a258p.  a David C.Gwynne and Robert B.Murray.  aMurray, Robert B., jt. author  aWeed control