APA Style
Pilkey, D. (2007).
Captain Underpants and the Preposterous Plight of the Purple Potty People .
London:
Scholastic.
MLA Style
Pilkey, Dav.
"Captain Underpants and the Preposterous Plight of the Purple Potty People".
London:
Scholastic,
2007.
Printed Book.