TY  - BOOK
AU  - Rao,Venugopal V.
TI  - Principles of Environmental Science and Engineering 
SN  - 9788120328938
U1  - 628 
PY  - 2010///, 2012
CY  - New Delhi
PB  - PHI Learning 
KW  - Environmental Science
KW  - Environmental engineering
KW  - Civil
KW  - Enviornmental Science
N1  - index included
ER  -