Pilkey, D. (2006). Captain Underpants and the preposterous plight of the purple potty people: The eighth epic novel. Scholastic.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPilkey, Dav. Captain Underpants and the Preposterous Plight of the Purple Potty People: The Eighth Epic Novel. New York: Scholastic, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPilkey, Dav. Captain Underpants and the Preposterous Plight of the Purple Potty People: The Eighth Epic Novel. Scholastic, 2006.
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