TY  - GEN
AU  - Singh, Jagbir
TI  - Environmental development: challanges and opportunities 
SN  - 818823740X
AV  - HD 75.6 ENV 2005 
PY  - 2005///
CY  - New Dehli
PB  - IK International
KW  - Environment-- development
N1  - Include index
ER  -