TY  - BOOK
AU  - Srivastav, Sweta 
TI  - Basics of environmental science
SN  - 9788126135226
U1  - 333.7 SRI 
PY  - 2008///
CY  - New Delhi, India
PB  - Anmol Publications PVT. LTD.
N1  - Includes bibliography
ER  -