Riordan , Rick <br/><br/>
Percy Jackson and the sea of monsters / by  
Rick Riordan 
 - London :  Penguin ;  2006. 
 - 264 pages.  19 cm. 
<br/><br/><label>ISBN: </label>9780141346847 
<br/><br/><label>Dewey Class. No.: </label>EJF RIOR