000 00319nam a2200121Ia 4500
008 220201s2004 xx 000 0 eng d
082 _a628.3
_bGAR
100 _aGarg,SK
245 0 _aEnvironmental Engg: Sewage Disposal & Air Pollution Engineering
260 _bKhanna Publisher
_c2004
300 _a1032
942 _2ddc
999 _c87578
_d87578