Riordan, Rick. <br/><br/>
Percy Jackson and the Olympians: Ultimate Guide, The-Percy Jackson and the Olympians. 

 - 156  p. 
<br/><br/> Percy Jackson and the Olympians: Ultimate Guide, The-Percy Jackson and the Olympians by Rick Riordan (2010) 
<br/><br/><label>ISBN: </label>1423121716