Cita APA (7a ed.)

Darwin, C. (1963). The origin of species. Dent ; Dutton.

Cita Chicago Style (17a ed.)

Darwin, Charles. The Origin of Species. London : New York: Dent ; Dutton, 1963.

Cita MLA (9a ed.)

Darwin, Charles. The Origin of Species. Dent ; Dutton, 1963.