TY  - BOOK
AU  - Thomas 
AU  - Callan, Scott J
TI  - Environmental Economics : by: Janet M Thomas 
SN  - 9788131503874
U1  - 338.927 THO [ Shelf 29 ] 
PY  - 2007///
CY  - New Delhi
PB  - Cencage Learning India
KW  - Environmental Economics
KW  -  Ecological Economics
KW  -  21st Century
ER  -