Pilkey, D. (2020). Captain underpants and the perilous plot of professor poopypants (Color.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPilkey, Dav. Captain Underpants and the Perilous Plot of Professor Poopypants. Color. 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPilkey, Dav. Captain Underpants and the Perilous Plot of Professor Poopypants. Color. 2020.
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