Singleton, R. A., & Straits, B. C. (2005). Approaches to social research (4th ed.). Oxford University Press.
Chicago Style aipamenaSingleton, Royce A., and Bruce C. Straits. Approaches to Social Research. 4th ed. New York: Oxford University Press, 2005.
MLA aipamenaSingleton, Royce A., and Bruce C. Straits. Approaches to Social Research. 4th ed. Oxford University Press, 2005.
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