APA

Darwin C., . (1959). The origin of species. London: J.M. Dent & Sons.

Chicago

Darwin Charles, . 1959. The origin of species. London: J.M. Dent & Sons.

Harvard

Darwin C., . (1959). The origin of species. London: J.M. Dent & Sons.

MLA

Darwin Charles, . The origin of species. London: J.M. Dent & Sons. 1959.