000 00395nam a2200169Ia 4500
008 150909s9999 xx 000 0 und d
041 _aEnglish
082 _a632.58
082 _bHAR/AQ
100 _aHarrison A E
100 _eEditor
245 _aAquatic weed control
260 _bNational technical information service
260 _c1979
650 _aWeed Control
942 _cBK
999 _c230947
_d230947