000 00269nam a22001217a 4500
003 OSt
082 _a628.3
_bGAR
100 _aGARG, S.K
245 _aSEWAGE DISPOSAL AND AIR POLLUTION ENGINEERING
260 _aNEW DELHI
_bKHANNA
_c1996
300 _a790
942 _2ddc
_cD
999 _c79827
_d79827