Cita APA (7th ed.)
Schaefer, R. T. (2006). Sociology: A brief introduction (6th ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Schaefer, Richard T. Sociology: A Brief Introduction. 6th ed. Boston: McGraw-Hill, 2006.
Cita MLA (9th ed.)
Schaefer, Richard T. Sociology: A Brief Introduction. 6th ed. McGraw-Hill, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.