Cita APA (7th ed.)

SINGLETON, R. A., & STRAITS, B. C. (1999). Approaches to social research.-- ed.3. Oxford University Press.

Cita Chicago (17th ed.)

SINGLETON, Royce A., i Bruce C. STRAITS. Approaches to Social Research.-- Ed.3. Oxford: Oxford University Press, 1999.

Cita MLA (9th ed.)

SINGLETON, Royce A., i Bruce C. STRAITS. Approaches to Social Research.-- Ed.3. Oxford University Press, 1999.