Cita APA (7th ed.)

Schaefer, R. T., & Lamm, R. P. (1997). Sociology: A Brief Introduction (2nd ed.). The McGraw-Hill Companies, Inc.

Cita Chicago (17th ed.)

Schaefer, Richard T., i Robert P. Lamm. Sociology: A Brief Introduction. 2nd ed. New York: The McGraw-Hill Companies, Inc, 1997.

Cita MLA (9th ed.)

Schaefer, Richard T., i Robert P. Lamm. Sociology: A Brief Introduction. 2nd ed. The McGraw-Hill Companies, Inc, 1997.