APA (7th ed.) Citation

Gutman, D., & Paillot, J. (2025). Mr. Plummer is dumber! (First edition.). Harper, an imprint of HarperCollinsPublishers.

Chicago Style (17th ed.) Citation

Gutman, Dan, and Jim Paillot. Mr. Plummer Is Dumber! First edition. New York, NY: Harper, an imprint of HarperCollinsPublishers, 2025.

MLA (8th ed.) Citation

Gutman, Dan, and Jim Paillot. Mr. Plummer Is Dumber! First edition. Harper, an imprint of HarperCollinsPublishers, 2025.

Warning: These citations may not always be 100% accurate.