Schaefer, R. T. (2006). Sociology: A brief introduction. Boston: McGraw-Hill.
Trích dẫn kiểu ChicagoSchaefer, Richard T. Sociology: A Brief Introduction. Boston: McGraw-Hill, 2006.
Deismireacht MLASchaefer, Richard T. Sociology: A Brief Introduction. Boston: McGraw-Hill, 2006.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.