000 00308nam a2200121Ia 4500
008 160710s1980 xx 000 0 und d
100 _aBENEFIELD,D.L.& RANDALL.
245 _aBiological Process Design for Waste water Treatment.
250 _a1
260 _bP.H.I.
_c1980
300 _a526
942 _2ddc
_cB
999 _c44460
_d44460