Water supply and waste water engineering
Lal, D.
Water supply and waste water engineering - New Delhi : S.K Kataria, 2011. - 196 p. ;
Sewage--Purification
Sewage--Purification--Biological treatment
Water reuse
628.162LAL
Water supply and waste water engineering - New Delhi : S.K Kataria, 2011. - 196 p. ;
Sewage--Purification
Sewage--Purification--Biological treatment
Water reuse
628.162LAL