APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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