TY  - GEN
AU  - Lal, D
AU  - Upadhyay, AK
TI  - Water supply and waste water engineering: With practicals
SN  - 9789350143766
U1  - 628.1 
PY  - 2001///
CY  - New Delhi
PB  - S.K Kataria
KW  - Waste water engineering
KW  - Water Engineering
KW  - Water supply
ER  -