Kenyon, Karl W. The sea otter in the eastern Pacific Ocean - Washington : Bureau of Sport Fisheries and Wildlife, 1970 - 352 p. : ilus. ; gráfs. - North America Fauna ; 68 . - North America Fauna ; 68 . LCCN: 27464 Subjects--Topical Terms: Fauna marina.Zoología. Dewey Class. No.: 591.925 / K4