Cita APA (7a ed.)

Kinney, J. (2010). Dairy of a Wimpy Kid: The Ugly truth. Penguin Books.

Cita Chicago Style (17a ed.)

Kinney, Jeff. Dairy of a Wimpy Kid: The Ugly Truth. London: Penguin Books, 2010.

Cita MLA (9a ed.)

Kinney, Jeff. Dairy of a Wimpy Kid: The Ugly Truth. Penguin Books, 2010.