World Conservation Monitoring Centre, & IUCN. (1990). 1990 Unites Nations list of national parks and protected areas =: Liste des Nations Unies des parcs nationaux et des aires protegees 1990. Inglaterra: IUCN.
Chicago Style CitationWorld Conservation Monitoring Centre, and IUCN. 1990 Unites Nations List of National Parks and Protected Areas =: Liste Des Nations Unies Des Parcs Nationaux Et Des Aires Protegees 1990. Inglaterra: IUCN, 1990.
MLA CitationWorld Conservation Monitoring Centre, and IUCN. 1990 Unites Nations List of National Parks and Protected Areas =: Liste Des Nations Unies Des Parcs Nationaux Et Des Aires Protegees 1990. Inglaterra: IUCN, 1990.
Warning: These citations may not always be 100% accurate.