Cita APA (7th ed.)

Schaefer, R. T. (2011). Sociology: A brief introduction (9th edition.). McGraw-Hill.

Cita Chicago (17th ed.)

Schaefer, Richard T. Sociology: A Brief Introduction. 9th edition. New York: McGraw-Hill, 2011.

Cita MLA (9th ed.)

Schaefer, Richard T. Sociology: A Brief Introduction. 9th edition. McGraw-Hill, 2011.