TY  - BOOK
AU  - Kamala, A .
AU  - Rao Kanth,D L  .
TI  - Environmental engineering: Water suppy, sanitary engineering and pollution / 
SN  - 0-07-451708-2
U1  - 628 
PY  - 1988///
CY  - New Delhi : 
PB  - Tata Mc-Graw Hill Publishing Company , 
N1  - ** Reference
ER  -