TY  - BOOK
AU  - Rana S. V. S.
TI  - Essentials of Ecology and Environmental Science
SN  - 9788120327733
AV  - GE140 RAN 
PY  - 2005///
CY  - New Delhi
PB  - Prentice Hall of India Private Limited
KW  - Geography
N1  - Includes Index
ER  -