TY  - BOOK
AU  - Behera,H.P. 
AU  - Khan,M.S. 
TI  - Environment Manangement 
SN  - 9788184883510
U1  - 333.72 
PY  - 2011///
CY  - Mumbai : 
PB  - Himalaya Publishing , 
KW  - Biological Clock
KW  - Economics
KW  - Food Chain
KW  - Pyramid
ER  -