TY  - BOOK
AU  - Haab,Timothy C.
TI  - Valuing environmental and natural resources: the econometrics of non-market valuation 
SN  - 1-84064-704-3
U1  - POS 
PY  - 2002///
CY  - Cheltenham
PB  - Edward Elgar
KW  - Recursos naturales
KW  - conservación
ER  -