APA aipamena

Kinney, J. (2007). Dairy of a Wimpy Kid: Old School. Penguin Books.

Chicago Style aipamena

Kinney, Jeff. Dairy of a Wimpy Kid: Old School. London: Penguin Books, 2007.

MLA aipamena

Kinney, Jeff. Dairy of a Wimpy Kid: Old School. Penguin Books, 2007.