APA aipamena

London, J., & Olson, J. (2011). Little penguin: The Emperor of Antarctica. Marshall Cavendish Children's.

Chicago Style aipamena

London, Jonathan, and Julie Olson. Little Penguin: The Emperor of Antarctica. New York: Marshall Cavendish Children's, 2011.

MLA aipamena

London, Jonathan, and Julie Olson. Little Penguin: The Emperor of Antarctica. Marshall Cavendish Children's, 2011.