Jefferson, Thomas A. Marine mammals of the world : a comprehensive guide to their identification / - First edition - UK : Academic Press, c2008. - xii, 573 p. : ill. (some col.) ; 25 cm. Includes bibliographical references and index. ISBN: 9780123838537 Subjects--Topical Terms: 1. Marine mammals. 2. Marine mammals-Identification. Dewey Class. No.: Circ. 599.5 J46m 2008