TY  - BOOK
AU  - P Venugopala Rao
TI  - Principles of Environmental Science and Engineering
SN  - 0000092115
U1  - 620.8 
PY  - 2006///
CY  - New Delhi
PB  - P H I
KW  -  Environmental
KW  -  Principles
KW  -  Science
KW  - Engineering
KW  - Environmental app health
ER  -