Dyfyniad APA

Schaefer, R. T., & Lamm, R. P. (1997). Sociology: A Brief Introduction (2nd ed.). The McGraw-Hill Companies, Inc.

Dyfyniad Arddull Chicago

Schaefer, Richard T., and Robert P. Lamm. Sociology: A Brief Introduction. 2nd ed. New York: The McGraw-Hill Companies, Inc, 1997.

Dyfyniad MLA

Schaefer, Richard T., and Robert P. Lamm. Sociology: A Brief Introduction. 2nd ed. The McGraw-Hill Companies, Inc, 1997.

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