Oakley, Mark  <br/><br/>
Whales and dolphins / 
Mark Oakley; illustrated by Studio Boni/ Galante and Lorenzo Pieri. 
 - Leicestershire :  Ladybird. 
 - 30 p. :  ill. 
<br/><br/><label>ISBN: </label>0721417434 9780721417431 
<br/><br/><label>Dewey Class. No.: </label>599.5