Gaya APA
Pilkey, D. (2006).
Captain Underpants and Preposterous Plight of the Purple Potty People .
London:
Scholastic Children\'s Books.
Gaya MLA
Pilkey, Day.
"Captain Underpants and Preposterous Plight of the Purple Potty People".
London:
Scholastic Children\'s Books,
2006.
Text.