TY  - BOOK
AU  -  Rao, P  Venugopala.
TI  - Environmental science and engineering / 
SN  - 81-203-2893-0
U1  - G:55OaD 
PY  - 2006///
CY  - New Delhi : 
PB  - Prentice-Hall of India Pvt. Ltd. , 
KW  - Environmental Science
ER  -