Schaefer, R. T. (2006). Sociology: A brief introduction (6th, annotated instructor's ed.). Boston, Mass.: McGraw-Hill.
Παραπομπή Chicago StyleSchaefer, Richard T. Sociology: A Brief Introduction. 6th, annotated instructor's ed. Boston, Mass.: McGraw-Hill, 2006.
Παραπομπή MLASchaefer, Richard T. Sociology: A Brief Introduction. 6th, annotated instructor's ed. Boston, Mass.: McGraw-Hill, 2006.
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