Dolphins, Porpoises and Whales of the World: The IUCN Red Data Book. IUCN - The World Conservation Union, Gland, Switzerland. 429 pp.
1989
Dolphins, Porpoises, and Whales. An Action Plan for the Conservation of Biological Diversity: 1988-1992. International Union for the Conservation of Biological Diversity, Gland, Switzerland. 27 pp.