APA Style

Pilkey, D. (2020). Captain underpants #8: preposterous plight of the purple potty people (color edition) . New York, USA: Scholastic Inc.

MLA Style

Pilkey, Dav. "Captain underpants #8: preposterous plight of the purple potty people (color edition)". New York, USA: Scholastic Inc, 2020. Printed Book.