Dolphins, porpoises and whales : an action plan for the conservation of biological diversity, 1988-1992 /
Perrin, W. F.
International Union for Conservation of Nature and Natural Resources.
United States.National Marine Fisheries Service.
Gland, Switzerland : IUCN,
c1989.
Includes bibliographical references (p. 19-21)
Dolphins
Porpoises
Whales
Biological diversity conservation