Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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