APA (7th ed.) Citation

Darwin, C. (1866). On the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life (4. ed., with additions and corr.). 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. 4. ed., with additions and corr. London: Murray, 1866.

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. 4. ed., with additions and corr. Murray, 1866.