Encyclopedia of marine mammals / 
editors, William F. Perrin, Bernd Würsig, J.G.M. Thewissen. 
 - San Diego :  Academic Press,  c2002. 
 - xxxviii, 1414 p. :  ill. (some col.), maps ;  29 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0125513402 (alk. paper) 
<br/><br/><label>LCCN: </label>2001087128 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine mammals--Encyclopedias.
<br/><br/><label>LC Class. No.: </label>QL713.2  / .E53 2002 
<br/><br/><label>Dewey Class. No.: </label>599.5