Dyfyniad APA

Landis, J. R. (1995). Sociology: Concepts and characteristics (9th ed.). Wadsworth.

Dyfyniad Arddull Chicago

Landis, Judson R. Sociology: Concepts and Characteristics. 9th ed. Belmont, Calif: Wadsworth, 1995.

Dyfyniad MLA

Landis, Judson R. Sociology: Concepts and Characteristics. 9th ed. Wadsworth, 1995.

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