TY  - BOOK
AU  - Srivastav, Sweta
TI  - Basics of environmental sciences
SN  - 978-81-261-3522-6
U1  - GC 363.7 S774 2008 
PY  - 2008///
CY  - New Delhi
PB  - Anmol Publications
KW  - Environmental sciences
ER  -