International Union for Conservation of Nature and Natural Resources.

• IUCN Red List Categories
• Protected Areas of the World: A Review of National Systems Volume 1
• A pocket guide to IUCN--the World Conservation Union, 1996/1997
• A strategy for the conservation of living marine resources and processes in the Caribbean region
• An introduction to the World conservation strategy
• Biotic provinces of the world
• Classification of the Biogeographical Provinces of the World
• Derniers refuges
• Distribution of Protected Areas in Relation to the Needs of Biotic Community Conservation in Eastern Africa
• Douzième assemblée générale, Kinshasa, Zaïre, 8--18 septembre, 1975
• Draft International Covenant on Environment and Development (Environmental Policy & Law Papers)
• Ecological Guidelines For Development in Tropical Rain Forests