APA (7th ed.) Citation

Theodorson, G. A., & Theodorson, A. G. (1969). A modern dictionary of sociology. Crowell.

Chicago Style (17th ed.) Citation

Theodorson, George A., and Achilles G. Theodorson. A Modern Dictionary of Sociology. New York: Crowell, 1969.

MLA (9th ed.) Citation

Theodorson, George A., and Achilles G. Theodorson. A Modern Dictionary of Sociology. Crowell, 1969.