APA (7th ed.) Citation

Dobzhansky, T. (1941). Genetics and the origin of species (2d. ed.). Columbia university press.

Chicago Style (17th ed.) Citation

Dobzhansky, Theodosius. Genetics and the Origin of Species. 2d. ed. New York: Columbia university press, 1941.

MLA (9th ed.) Citation

Dobzhansky, Theodosius. Genetics and the Origin of Species. 2d. ed. Columbia university press, 1941.