APA (7th ed.) Citation

Kinney, J., & Ocampo, R. d. (2013). Diary of a wimpy kid: Hard luck (Unabridged.). Recorded Books.

Chicago Style (17th ed.) Citation

Kinney, Jeff, and Ramon de Ocampo. Diary of a Wimpy Kid: Hard Luck. Unabridged. Prince Frederick, MD: Recorded Books, 2013.

MLA (8th ed.) Citation

Kinney, Jeff, and Ramon de Ocampo. Diary of a Wimpy Kid: Hard Luck. Unabridged. Recorded Books, 2013.

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