TY  - BOOK
AU  - Phillips,Adrian
TI  - Economic values of protected areas: Guidelines for Protected Area Managers 
T2  - Best Practice Protected Area Guidelines Series
SN  - 2831704618
U1  - 333.716 23
PY  - 1998///
CY  - Cambridge
PB  - IUCN Publications Services Unit
KW  - Conservation
KW  - ConservaciÃ³n
KW  - Protected areas
KW  - Ãreas protegidas
KW  - Economics
KW  - EconomÃ­a
ER  -