TY  - BOOK
AU  - Rana, S.V.S;
TI  - Essentials of Ecology & Environmental Science
SN  - 9788120323209 
U1  - 574.5 
PY  - 2003///
CY  - New Delhi
PB  - Prentice Hall Of India
KW  - Ecology.
KW  - Environmental sciences.
KW  - Environmental protection
N1  - Included Glossary and Index
ER  -