APA (7th ed.) Citation

Working Session of IUCN's Commission on National Parks and Protected Areas San José, Costa Rica, CR, & International Union for Conservation of Nature and Natural Resources. IUCN. (1988). New challenges for the World's protected area system: Proceedings. International Union for Conservation of Nature and Natural Resources.

Chicago Style (17th ed.) Citation

Working Session of IUCN's Commission on National Parks and Protected Areas San José, Costa Rica, CR, and International Union for Conservation of Nature and Natural Resources. IUCN. New Challenges for the World's Protected Area System: Proceedings. Gland: International Union for Conservation of Nature and Natural Resources, 1988.

MLA (9th ed.) Citation

Working Session of IUCN's Commission on National Parks and Protected Areas San José, Costa Rica, CR, and International Union for Conservation of Nature and Natural Resources. IUCN. New Challenges for the World's Protected Area System: Proceedings. International Union for Conservation of Nature and Natural Resources, 1988.