000 00419nam a2200133 a 4500
999 _c8193
_d8193
082 _a628.162LAL
100 1 _aLal, D.
245 1 0 _aWater supply and waste water engineering
260 _aNew Delhi :
_bS.K Kataria,
_c2011.
300 _a196 p. ;
650 _aSewage--Purification
_aSewage--Purification--Biological treatment
_aWater reuse
856 4 0 _uhttp://www.amazon.com/exec/obidos/ASIN/chopaconline-20
942 _cBK