Cita APA (7a ed.)
(1993). Seals, fur seals, sea lions, and wairus. IUCN.
Cita Chicago Style (17a ed.)
Seals, Fur Seals, Sea Lions, and Wairus. Gland: IUCN, 1993.
Cita MLA (9a ed.)
Seals, Fur Seals, Sea Lions, and Wairus. IUCN, 1993.
Precaución: Estas citas no son 100% exactas.