APA (7th ed.) Citation

Barnes, H. E., & Davis, J. (1931). An introduction to sociology. D.C. Heath.

Chicago Style (17th ed.) Citation

Barnes, Harry E., and Jerome Davis. An Introduction to Sociology. Boston: D.C. Heath, 1931.

MLA (9th ed.) Citation

Barnes, Harry E., and Jerome Davis. An Introduction to Sociology. D.C. Heath, 1931.