TY  - BOOK
AU  - Lal, D. & Upadhyay, A.K.
TI  - Water supply and waste water engineering (With practicals)
SN  - 978-93-5014-376-6
U1  - Cir. 363.6 L15 c2014 
PY  - 2014///
CY  - New Delhi
PB  - S.K. Kataria & Sons
ER  -