00310nam a2200097Ia 4500008004100000082002100041100003600062245006100098260004500159300000800204140113s9999    xx            000 0 und d  a632.954(02)   L4  aWeed science Society of America  aHerbicide Handbook of the weed scienc society of America  a1974b"Weed Science Society,"cChampaign  a430