Dyfyniad APA

Schaefer, R. T. (2011). Sociology: A brief introduction (9th ed.). Tata McGraw-Hill.

Dyfyniad Arddull Chicago

Schaefer, Richard T. Sociology: A Brief Introduction. 9th ed. New York ; New Delhi: Tata McGraw-Hill, 2011.

Dyfyniad MLA

Schaefer, Richard T. Sociology: A Brief Introduction. 9th ed. Tata McGraw-Hill, 2011.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.