Riordan, Rick. <br/><br/>
The battle of the labyrinth / 
Rick Riordan. 
 - Los Angeles:  Disney Hyperion,  2008. 
 - 361p. 
 - Percy Jackson and the Olympians.  4 .
<br/><br/><label>ISBN: </label>9781423101499 
<br/><br/><label>Dewey Class. No.: </label>FIC R47 2008