Cita APA (7a ed.)

(1991). Dolphins, porpoises and whales of the world: The IUCN red data book. IUCN.

Cita Chicago Style (17a ed.)

Dolphins, Porpoises and Whales of the World: The IUCN Red Data Book. Gland, Wetzerland: IUCN, 1991.

Cita MLA (9a ed.)

Dolphins, Porpoises and Whales of the World: The IUCN Red Data Book. IUCN, 1991.