APA-viite (7. p.)

Darwin, C., & Beer, G. (2008). On the origin of species (Rev. ed.). Oxford University Press.

Chicago-viite (17. p.)

Darwin, Charles, ja Gillian Beer. On the Origin of Species. Rev. ed. New York: Oxford University Press, 2008.

MLA-viite (9. p.)

Darwin, Charles, ja Gillian Beer. On the Origin of Species. Rev. ed. Oxford University Press, 2008.