TY  - BOOK
ED  - International Union for Conservation of Nature Commission on National Parks and Protectected Areas.
TI  - 1990 United Nations list of National Parks and Protectected Areas
SN  - 2831700329
U1  - R 333.7830216 21st ed.
PY  - 1990///
CY  - [s.l.]
PB  - IUCN-The World Conservation Union
KW  - Conservation of natural resources
KW  - Lists
KW  - National parks and reserves
ER  -