Style de citation APA (7e éd.)

Kooyman, G. L., & Lynch, W. (2013). Penguins: The animal answer guide. The Johns Hopkins University Press.

Style de citation Chicago (17e éd.)

Kooyman, Gerald L., et Wayne Lynch. Penguins: The Animal Answer Guide. Baltimore: The Johns Hopkins University Press, 2013.

Style de citation MLA (8e éd.)

Kooyman, Gerald L., et Wayne Lynch. Penguins: The Animal Answer Guide. The Johns Hopkins University Press, 2013.