APA (7th ed.) Citation

Kinney, J. (2013). Diary of a wimpy kid: Hard luck (1. publ.). Viking / Penguin.

Chicago Style (17th ed.) Citation

Kinney, Jeff. Diary of a Wimpy Kid: Hard Luck. 1. publ. Melbourne: Viking / Penguin, 2013.

MLA (9th ed.) Citation

Kinney, Jeff. Diary of a Wimpy Kid: Hard Luck. 1. publ. Viking / Penguin, 2013.

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