Schaefer, R. T. (2019). Sociology: A brief introduction (Thirteenth edition.). McGraw-Hill Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchaefer, Richard T. Sociology: A Brief Introduction. Thirteenth edition. New York, NY: McGraw-Hill Education, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSchaefer, Richard T. Sociology: A Brief Introduction. Thirteenth edition. McGraw-Hill Education, 2019.
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