000 00295nam a2200121Ia 4500
008 220201s2014 xx 000 0 eng d
082 _a628.3
_bGAR
100 _aGarg, SK
245 0 _aSewage disposal & air pollution engg.
260 _bNew Delhi: Khanna
_c2014
300 _a1060
942 _2ddc
999 _c88555
_d88555