Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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