TY  - BOOK
AU  - Rana, S. V. S. 
TI  - Essentials of ecoloy and environmental science 
SN  - 9788120338944 (pbk.)
U1  - 577.14  RAN/ES  
PY  - 2009///.
CY  - New Delhi: 
PB  - PHI Learning, 
KW  - Ecology
KW  - Environmental science
KW  - Climate and atmosphere
ER  -