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.
Цитирование в стиле Чикаго (17-е изд.)Darwin, Charles, и 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.
Цитирование MLA (8-е изд.)Darwin, Charles, и 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.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.