000 00302nam a2200121Ia 4500
008 140317s9999 xx 000 0 und d
082 _a628.166
100 _aHawkes,H.A.
245 4 _aThe ecology of waste water treatment.
260 _aOxford
_bPergamon Press.
_c1963
300 _a203
942 _2ddc
_cBK
999 _c4024
_d4024