Cita APA (7th ed.)

Babbie, E. R. (1995). The practice of social research (7th ed.). Wadsworth Pub. Co..

Cita Chicago (17th ed.)

Babbie, Earl R. The Practice of Social Research. 7th ed. Belmont: Wadsworth Pub. Co., 1995.

Cita MLA (8th ed.)

Babbie, Earl R. The Practice of Social Research. 7th ed. Wadsworth Pub. Co., 1995.