000 00338 a2200145 4500
003 OSt
005 20210720123651.0
008 210720b xxu||||| |||| 00| 0 eng d
040 _cIIT Kanpur
041 _aeng
082 _a628.3
_bC76p
245 1 _aBiological treatment of sewage and industrial waste
260 _c1957
942 _cBK
999 _c456060
_d456060