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.
Cita Chicago Style (17a ed.)Darwin, Charles, y 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.
Cita MLA (8a ed.)Darwin, Charles, y 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.
Precaución: Estas citas no son 100% exactas.