TY  - BOOK
AU  - Rana, S V S
TI  - Essentials of ecology and environmental science
SN  - 9788120338944
PB  - New Delhi
KW  - Atmosphere and climate
KW  - Biodiversity
KW  - Biosphere
KW  - Earth
KW  - Ecology
KW  - Environmental adaptations
KW  - Hydrosphere
KW  - Lithosphere
KW  - Nitrogen cycle
N1  - Reprint year 2009. Includes index
ER  -