APA (7th ed.) Citation

Dobzhansky, T. (1967). The biology of ultimate concern. Meridian Books.

Chicago Style (17th ed.) Citation

Dobzhansky, Theodosius. The Biology of Ultimate Concern. Nueva York: Meridian Books, 1967.

MLA (9th ed.) Citation

Dobzhansky, Theodosius. The Biology of Ultimate Concern. Meridian Books, 1967.