APA (7th ed.) Citation

Kinney, J. (2010). Diary of a wimpy kid: The ugly truth. Amulet Books.

Chicago Style (17th ed.) Citation

Kinney, Jeff. Diary of a Wimpy Kid: The Ugly Truth. New York: Amulet Books, 2010.

MLA (9th ed.) Citation

Kinney, Jeff. Diary of a Wimpy Kid: The Ugly Truth. Amulet Books, 2010.