000 00354nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a8170412145
082 _a628.168 C 426
100 _aCHHATWAL, G.R
245 0 _aENVIRONMENTAL WATER POLLUTION AND ITS CONTROL
260 _aNEW DELHI
_bAnmol Publication
_c1989
300 _a23X15
942 _cBK
_2DDC
999 _c23591
_d23591