TY  - BOOK
AU  - Abbas, S.G. 
AU  - Singh , B.S. 
AU  - Singh, M.P. 
TI  - Environment and natural resources
SN  - 8189304011
U1  - 333.78 21st ed
PY  - 2005///
CY  - Delhi
PB  - Satish Serial Publishing
KW  - Ecology
KW  - Environment impact analysis
KW  - Natural resources
ER  -