APA (7th ed.) Citation
Darwin, C., & Beer, G. (2008). On the origin of species (Rev. ed.). Oxford University Press.
Chicago Style (17th ed.) Citation
Darwin, Charles, and Gillian Beer. On the Origin of Species. Rev. ed. New York: Oxford University Press, 2008.
MLA (9th ed.) Citation
Darwin, Charles, and Gillian Beer. On the Origin of Species. Rev. ed. Oxford University Press, 2008.
Warning: These citations may not always be 100% accurate.