TY  - BOOK
AU  - Vasudevan, N.
TI  - Essentials of Environmental Science
SN  - 9788173197062
U1  - 363.7 
PY  - 2006///
CY  - New Delhi
PB  - Narosa Publishing House
KW  - Social problems and services
KW  - Social sciences
KW  - Environmental sciences
ER  -