Dav Pilkey <br/><br/>
Captain Underpants and the Preposterous Plight of the Purple Potty People 

 - New York  Scholastic  2002 
 - 125p.; 20cm 
<br/><br/><label>ISBN: </label>7980439376068 
<br/><br/><label>Dewey Class. No.: </label>PIL