Marine mammals of the world : a comprehensive guide to their identification / [electronic resource] Thomas A. Jefferson, Marc A. Webber, Robert L. Pitman ; illustrations by Uko Gorter. Jefferson, Thomas A. Webber, Marc A. Pitman, Robert L. Gorter, Uko, illustrator. Marine mammals. Marine mammals Identification. QL713.2 .J44 2015eb 599.5 22 Includes bibliographical references and index. Print version record. London : Academic Press, 2015 2015 2015 Text 1 online resource http://www.sciencedirect.com/science/book/9780124095427 eng Druck-Ausgabe Marine mammals of the world Druck-Ausgabe Marine mammals of the world