Dyfyniad APA

Eitzen, D. S., & Zinn, M. B. (1989). Social problems (4th ed.). Allyn and Bacon.

Dyfyniad Arddull Chicago

Eitzen, D. Stanley, and Maxine Baca Zinn. Social Problems. 4th ed. Boston: Allyn and Bacon, 1989.

Dyfyniad MLA

Eitzen, D. Stanley, and Maxine Baca Zinn. Social Problems. 4th ed. Allyn and Bacon, 1989.

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