Citazione Stile APA (7a Edizione)

Babbie, E. R. (1986). The practice of social research (4th ed.). Wadsworth Pub. Co..

Citazione stile Chigago Style (17a edizione)

Babbie, Earl R. The Practice of Social Research. 4th ed. Calif.: Wadsworth Pub. Co., 1986.

Citatione MLA (9a ed.)

Babbie, Earl R. The Practice of Social Research. 4th ed. Wadsworth Pub. Co., 1986.