TY  - BOOK
AU  - Singh ,O.P.
TI  - Environment and Natural Resources : : Ecological and Economic Perspectives
SN  - 8189233394
U1  - 333.73 
PY  - 2006///
CY  - New Delhi: 
PB  - Regency Publication , 
KW  - Ecology
KW  - Economics
KW  - Environment
KW  - Natural Resource
ER  -