APA (7th ed.) Citation

Kinney, J. (2023). Diary of a Wimpy Kid: Old School. Penguin.

Chicago Style (17th ed.) Citation

Kinney, Jeff. Diary of a Wimpy Kid: Old School. London: Penguin, 2023.

MLA (9th ed.) Citation

Kinney, Jeff. Diary of a Wimpy Kid: Old School. Penguin, 2023.

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