APA (7th ed.) Citation

Darwin, C. (1928). The origin of species / by C. Darwin. Dent.

Chicago Style (17th ed.) Citation

Darwin, Charles. The Origin of Species / by C. Darwin. Dent, 1928.

MLA (9th ed.) Citation

Darwin, Charles. The Origin of Species / by C. Darwin. Dent, 1928.

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