000 00370nam a2200145Ia 4500
008 170101s1997 xx 000 0 und d
082 _aRS-BTI 363.739.4 G45W
100 _aGoel,P.K.
245 _aWater pollution
260 _aNew Delhi
_bAshish Pub House
_c1997
300 _a22cm. 269
650 _aWATER - - POLLUTION
653 _aWATER - - POLLUTION
942 _2ddc
_cB
999 _c117799
_d117799