Mammals in the seas 
FAO/UNEP 
 - Rome :  Food and Agriculture Organization (FAO),  1978. 
 - xxv, 264p. :  ill. ;  28cm. 
<br/><br/><label>ISBN: </label>92-5-100511-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine mammals
<br/><br/><label>LC Class. No.: </label>QTO QL713.F66M3 Vol.1