Cita APA (7th ed.)
Singleton, R., Straits,Bruce C, & Straits,Margaret Miller. (1993). Approaches to social research (2nd ed.). Oxford University press.
Cita Chicago (17th ed.)
Singleton, Royce, Straits,Bruce C, i Straits,Margaret Miller. Approaches to Social Research. 2nd ed. New York: Oxford University press, 1993.
Cita MLA (9th ed.)
Singleton, Royce, et al. Approaches to Social Research. 2nd ed. Oxford University press, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.