TY  - BOOK
AU  - Thomas,Janet M.
AU  - Callan,Scott J  .
TI  - Environmental economics / 
SN  - 9788131503874
U1  - 333.7 
PY  - 2007///
CY  - New Delhi : 
PB  - Cengage Learning India , 
KW  - ENVIRONMENT
N1  - Includes index,glossary
ER  -