APA (7th ed.) Citation

Kinney, J. (2015). Diary of a Wimpy Kid: Hard Luck. Penguin.

Chicago Style (17th ed.) Citation

Kinney, Jeff. Diary of a Wimpy Kid: Hard Luck. London: Penguin, 2015.

MLA (9th ed.) Citation

Kinney, Jeff. Diary of a Wimpy Kid: Hard Luck. Penguin, 2015.

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