APA (7th ed.) Citation

Darwin, C., & Case, D. (2006). The origin of species by means of natural selection, or, The preservation of favored races in the struggle for life. Tantor Media.

Chicago Style (17th ed.) Citation

Darwin, Charles, and David Case. The Origin of Species by Means of Natural Selection, or, The Preservation of Favored Races in the Struggle for Life. [S.l.]: Tantor Media, 2006.

MLA (8th ed.) Citation

Darwin, Charles, and David Case. The Origin of Species by Means of Natural Selection, or, The Preservation of Favored Races in the Struggle for Life. Tantor Media, 2006.

Warning: These citations may not always be 100% accurate.