Captain Underpants and the perilous plot of Professor Poopypants.
by Dav Pilkey.
- New York : Scholastic , c2000.
- 124, 159 pages : illustrations ; 19 cm.
- Captain Underpants ; 1 & 4 .
"Flip this book for another story!" --Cover
9781338192056 (paperback)
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