Cita APA (7th ed.)

Kinney, J. (2013). Diary of a wimpy kid: Hard luck. Amulet Books.

Cita Chicago (17th ed.)

Kinney, Jeff. Diary of a Wimpy Kid: Hard Luck. New York: Amulet Books, 2013.

Cita MLA (9th ed.)

Kinney, Jeff. Diary of a Wimpy Kid: Hard Luck. Amulet Books, 2013.