TY  - BOOK
AU  - Sexena M K
TI  - Biosphere as an ecosystem
SN  - 9789382215721
U1  - 333.95 
PY  - 2013///
CY  - New Delhi
PB  - Alp books
KW  - Geographical science
KW  - Biological science
KW  - Biogeography
KW  - Classification of biosphere
KW  - Plant and vegetation
ER  -