Coleman, Neville <br/><br/>
Encyclopedia of marine animals 
Neville Coleman 
 - London  Blandford  1991 
 - 324 p. : ill. ; 31 cm. 
<br/><br/>p. 306-307 
<br/><br/><label>ISBN: </label>0713722894 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oceans. Mammals