TY  - BOOK
AU  - Basu, Deepender
TI  - Environment and ecology: : the global challenge
U1  - 301.31 B299E 
PY  - 1995///
CY  - Jaipur
PB  - : Printwell, 
KW  - Environment problems
KW  - | Ecology
KW  - | Pollution
ER  -