TY  - BOOK
AU  - Adrian,Phillps
ED  - World  Commission on Protected Areas (WCPA)
TI  - Economic Values of Protected Areas: guidelines for protected area managers 
SN  - 2831704618
U1  - 333.71 23
PY  - 1998///
CY  - Cambridge
PB  - IUCN Publications Services Unit
ER  -