000 00309nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a628.3
_bAVC
100 _aAvceivala, Soli J
245 0 _aWaste water treatment for pollution control
260 _bTata Mc Graw hill
_c1992
300 _a187
942 _2ddc
999 _c85502
_d85502