000 00317nam a2200121Ia 4500
008 160710s1974 xx 000 0 und d
082 _a628 .354 GIB
100 _aGIBBON ,D. L. ,ED.
245 _aAERATION OF ACTIVATED SLUDGE IN SWEAGE TREATMENT
260 _bPERGAMON PRESS
_c1974
300 _a118
942 _2ddc
_cB
999 _c41120
_d41120