APA

Singleton R., Straits B. C. & Straits M. M. (1993). Approaches to social research. New York: Oxford University Press.

Chicago

Singleton Royce, Straits Bruce C and Straits Margaret Miller. 1993. Approaches to social research. New York: Oxford University Press.

Harvard

Singleton R., Straits B. C. and Straits M. M. (1993). Approaches to social research. New York: Oxford University Press.

MLA

Singleton Royce, Straits Bruce C and Straits Margaret Miller. Approaches to social research. New York: Oxford University Press. 1993.