Gaskin, David Edward,   1939- <br/><br/>
The ecology of whales and dolphins /  
D.E. Gaskin. 
 - London :   Heinemann Educational Books,   1982. 
 - 459 p. :   il. 
<br/><br/><label>ISBN: </label>0435622862 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Baleias--Ecologia.<br/>Golfinhos--Ecologia.
<br/><br/><label>Dewey Class. No.: </label>599.505