APA (7th ed.) Zitazioa

Singleton, R. A., & Straits, B. C. (2005). Approaches to social research (4th ed.). Oxford.

Chicago Style (17th ed.) Zitazioa

Singleton, Royce A., eta Bruce C. Straits. Approaches to Social Research. 4th ed. New York: Oxford, 2005.

MLA (9th ed.) Zitazioa

Singleton, Royce A., eta Bruce C. Straits. Approaches to Social Research. 4th ed. Oxford, 2005.