Pilkey, Dav <br/><br/>
Captain Underpants:  and the perilous plot of professor poopypants / 
the fourth epic novel by Dav Pilkey. 
 - New York :  Scholastic,  c2000. 
 - 151pages. : illustrations ; 19cm. 
<br/><br/>
<br/><br/><label>ISBN: </label>9780439049986