Citazione Stile APA (7a Edizione)

Babbie, E. R. (2004). The practice of social research (10th ed.). Wadsworth/Thomson Learning.

Citazione stile Chigago Style (17a edizione)

Babbie, Earl R. The Practice of Social Research. 10th ed. Belmont, CA: Wadsworth/Thomson Learning, 2004.

Citatione MLA (9a ed.)

Babbie, Earl R. The Practice of Social Research. 10th ed. Wadsworth/Thomson Learning, 2004.