Cita APA (7a ed.)

London, J., & Bullard, N. (2008). The Call of the Wild. Oxford University Press.

Cita Chicago Style (17a ed.)

London, Jack, y Nick Bullard. The Call of the Wild. Oxford, Inglaterra: Oxford University Press, 2008.

Cita MLA (9a ed.)

London, Jack, y Nick Bullard. The Call of the Wild. Oxford University Press, 2008.