000 00277nam a2200097Ia 4500
008 120224s9999 xx 000 0 und d
082 _a628.3
_bWIN
100 _aWinkler, M. A.
245 _aBiological treatment of waste - water
260 _bElis Horwood
_aChichester
_c1981
999 _c131778
_d131778