TY  - BOOK
AU  - Perman, Roger
TI  - Natural resource and environmental economics
SN  - 0582368766
U1  - 333.7 N9 
PY  - 1999///
CY  - London
PB  - Pearson Education
KW  - Environmental economics
KW  - Sustainable development
KW  - Economic development
ER  -