000 00272nam a2200109Ia 4500
008 160710s1956 xx 000 0 und d
100 _aIMHOFF,K. & FAIR,G.M.
245 _aSEWAGE TREATMENT
260 _aNEW YORK
_bJOHN WILEY & SONS
_c1956
300 _a338
942 _2ddc
_cB
999 _c30846
_d30846