Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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