TY  - BOOK
AU  - Khanna,D.R
TI  - Water and wastewater management Vol. 1
SN  - 978170000000
U1  - 333.911.509.54 K55W 
PY  - 2010///
CY  - New Delhi
PB  - Daya
KW  - Wastewater management
ER  -