APA (7th ed.) Citation

Jeff Kinney. (2015). Diary of a Wimpy Kid. Penguin Random House.

Chicago Style (17th ed.) Citation

Jeff Kinney. Diary of a Wimpy Kid. UK: Penguin Random House, 2015.

MLA (9th ed.) Citation

Jeff Kinney. Diary of a Wimpy Kid. Penguin Random House, 2015.