APA (7th ed.) Citation

Darwin, C. (1859). On the origin of species by means of natural selection: Or, The preservation of favoured races in the struggle for life. J. Murray.

Chicago Style (17th ed.) Citation

Darwin, Charles. On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life. London: J. Murray, 1859.

MLA (9th ed.) Citation

Darwin, Charles. On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life. J. Murray, 1859.