00454nam a2200193Ia 4500008004100000041001200041082001100053082001100064100001600075100001100091245003100102250001200133260001100145260003800156260000900194300001500203365002500218650001700243150909s9999    xx            000 0 und d  aEnglish  a632.58  bFRY/WE  aFryer J P    eEditor  aWeed control hand book V.2  a8th Ed.  aLondon  bBlackwell Scientific Publications  c1978  a532  Pages  aUKP.13.50             aWeed Science