Cita APA (7a ed.)

Schaefer, R. T. (2009). Sociology: A brief introduction. McGraw-Hill.

Cita Chicago Style (17a ed.)

Schaefer, Richard T. Sociology: A Brief Introduction. McGraw-Hill, 2009.

Cita MLA (8a ed.)

Schaefer, Richard T. Sociology: A Brief Introduction. McGraw-Hill, 2009.