TY  - BOOK
ED  - The World Conservation Union (IUCN)
ED  - World Conservation Monitoring Center 
ED  - United Nations Environment Programme (UNEP)
TI  - 1993 United Nations List of National Parks and Protected Areas
SN  - 2831701902
U1  - 333.78 23
PY  - 1994///
CY  - Suiza
PB  - IUCN
KW  - National parks
KW  - Parques nacionales
KW  - Protected areas
KW  - Áreas protegidas
ER  -