APA (7th ed.) Citation

Darwin, C. (1964). The origin of species by means of natural selection or the preservation of favoured races in the struggle for life (6. print.). New American Library.

Chicago Style (17th ed.) Citation

Darwin, Charles. The Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. 6. print. New York: New American Library, 1964.

MLA (9th ed.) Citation

Darwin, Charles. The Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. 6. print. New American Library, 1964.