TY  - BOOK
AU  - Lal D. & Upadhyay A.K.
TI  - Water Supply and Waste Water Engineering (with Practicals)
U1  - 628.19 LAL 
PY  - 2012///
CY  - S.K Kataria, New Delhi
PB  - S.K Kataria, New Delhi
ER  -