Cita APA (7th ed.)

Schaefer, R. T. (2005). Sociology (9th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Schaefer, Richard T. Sociology. 9th ed. New York: McGraw-Hill, 2005.

Cita MLA (9th ed.)

Schaefer, Richard T. Sociology. 9th ed. McGraw-Hill, 2005.