Encyclopedia of marine mammals / 
editors, William F. Perrin, Bernd Wursig, J.G.M. Thewissen 
 - San Diego :  Academic,  2002 
 - xxxviii, 1414 p. :  ill. (some col.), maps ;  29 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0125513402  RM562.59 
<br/><br/><label>LCCN: </label>2001-087128 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine mammals--Encyclopedias