APA (7th ed.) Citation

Kinney,Jeff. (2014). Diary of a Wimpy Kid: Hard luck. Puffin Books.

Chicago Style (17th ed.) Citation

Kinney,Jeff. Diary of a Wimpy Kid: Hard Luck. Great Britain: Puffin Books, 2014.

MLA (9th ed.) Citation

Kinney,Jeff. Diary of a Wimpy Kid: Hard Luck. Puffin Books, 2014.

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