Dyfyniad APA

Kornblum, W., Julian, J., & Smith, C. D. (1992). Social Problems (7th ed.). Prentice Hall.

Dyfyniad Arddull Chicago

Kornblum, William, Joseph Julian, and Carolyn D. Smith. Social Problems. 7th ed. New Jersey: Prentice Hall, 1992.

Dyfyniad MLA

Kornblum, William, et al. Social Problems. 7th ed. Prentice Hall, 1992.

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