Citazione Stile APA (7a Edizione)

Berlage, G., & Engelman, W. (1999). Understanding social issues: Critical thinking and analysis (5th ed.). Allyn and Beacon.

Citazione stile Chigago Style (17a edizione)

Berlage, Gai, e William Engelman. Understanding Social Issues: Critical Thinking and Analysis. 5th ed. Boston: Allyn and Beacon, 1999.

Citatione MLA (9a ed.)

Berlage, Gai, e William Engelman. Understanding Social Issues: Critical Thinking and Analysis. 5th ed. Allyn and Beacon, 1999.