Pilkey, Dav  1966 <br/><br/>
Captain Underpants and the perilous plot of professor poopypants  the Fourth Epic Novel 
Da Pilkey 
 - ed. 
 - [S.l.]  Scholstic  1999 
 - 151 p. 
<br/><br/><label>ISBN: </label>9780439998192 9780439049986 
<br/><br/><label>Dewey Class. No.: </label>[Fic]