000 00300nam a2200121Ia 4500
008 250523s9999 xx 000 0 und d
100 _aGoel, P.K.
245 0 _aWater Pollution
260 _bNew Age International Publishers
_aNew Delhi
_c2009
300 _a418
650 _aEngineering
942 _cBK
999 _c16502
_d16502