World Congress on National Parks and Protected Areas Caracas, VE, & IUCN. The World Conservation Union. (1992). Regional reviews: IV th. World Congresso national parks and protected areas. The World Conservation Union.
Chicago Style (17th ed.) CitationWorld Congress on National Parks and Protected Areas Caracas, VE, and IUCN. The World Conservation Union. Regional Reviews: IV Th. World Congresso National Parks and Protected Areas. Caracas: The World Conservation Union, 1992.
MLA (9th ed.) CitationWorld Congress on National Parks and Protected Areas Caracas, VE, and IUCN. The World Conservation Union. Regional Reviews: IV Th. World Congresso National Parks and Protected Areas. The World Conservation Union, 1992.