Harrison, Richard J. <br/><br/>
Marine mammals / 
Richard J. Harrison and Judith E. King 
 - 2nd ed. 
 - London :  Hutchinson,  1980 
 - 192 p. :  ill. ;  22 cm . 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>0091409314 
<br/><br/><label>LCCN: </label>80-484397 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine mammals