000 00303nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aGrady (C.D leslie) and Lim (Henry C)
245 0 _aBiological wate water treatment
260 _bMarcel Dekker
260 _c1980
365 _b861.6
942 _cBK
999 _c208719
_d208719