Theodorou, Rod <br/><br/>
Shark and dolphin 
Rod Theodorou 
 - Oxford:  Heinemann Publishers Ltd,  1996. 
 - 24p.:  ill.,  cm. 
 - Spot the difference  .
<br/><br/> Includes index  
<br/><br/><label>ISBN: </label>9780431063744 
<br/><br/><label>Dewey Class. No.: </label>597.31