APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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