TY  - BOOK
AU  - Rana,S.V.S.
TI  - Essentials of ecology and environmental science
SN  - 8120323203 (pbk.)
PY  - 2003///
CY  - New Delhi
PB  - Prentice-hall of India
KW  - Ecology
KW  - Environmental Science
N1  - Includes index
ER  -