Dahl, prepared by the International Union for Conservation of Nature and Natural Resources, Commission on National Parks and Protected Areas ; in collaboration with the United Nations Environment Programme ; based on the work of Arthur Lyon (1986). Review of the protected areas system in Oceania (Sept. 1986. ed.). Gland, Switzerland: IUCN. p. 51 & 205. ISBN9782880325091.{{cite book}}: CS1 maint: multiple names: authors list (link)
