Pilkey, D. (1999). Captain Underpants and the attack of the talking toilets. Blue Sky Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPilkey, Dav. Captain Underpants and the Attack of the Talking Toilets. New York: Blue Sky Press, 1999.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPilkey, Dav. Captain Underpants and the Attack of the Talking Toilets. Blue Sky Press, 1999.
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