Pilkey, Dav  1966 <br/><br/>
Captain Underpants and the big, bad battle of the Bionic Booger boy Part 2  The Revenge of The Ridiculous Robo.Boogers : The Seventh Epic Novel 
Da Pilkey 
 - ed. 
 - [S.l.]  Scholastic  2003 
 - 173 p. 
<br/><br/><label>ISBN: </label>9780439977722