Cita APA (7th ed.)

Landis, J. R. (1989). Sociology: Concepts and characteristics (7th ed.). Wadsworth Pub. Co.

Cita Chicago (17th ed.)

Landis, Judson R. Sociology: Concepts and Characteristics. 7th ed. Belmont, Calif: Wadsworth Pub. Co, 1989.

Cita MLA (9th ed.)

Landis, Judson R. Sociology: Concepts and Characteristics. 7th ed. Wadsworth Pub. Co, 1989.