000 00334nam a22001097a 4500
008 140104b xxu||||| |||| 00| 0 eng d
020 _a8176250295
050 _a628.5
100 _aHarish Kumar
245 _aModern methods in environmental pollution analysis,vol.2:
_bwater pollution analysis
260 _aNew Delhi
_bSarup & sons
_c1998
999 _c329340
_d329340