000 00347nam a22001457a 4500
003 OSt
020 _a9788174092304
082 _a628.3 GAR
100 _aGarg, S K
245 _aEnviornmental Engg : Sewage Disposal, & Air Pollution Engg.
250 _a35 ed.
260 _aNew Delhi
_bKhanna Publication
_c2015
300 _a1065
942 _2ddc
_cBK
999 _c3864
_d3864