Citazione Stile APA (7a Edizione)

Babbie, E. R. (2021). The practice of social research (15th ed.). Cengage Learning Inc.

Citazione stile Chigago Style (17a edizione)

Babbie, Earl R. The Practice of Social Research. 15th ed. USA: Cengage Learning Inc, 2021.

Citatione MLA (9a ed.)

Babbie, Earl R. The Practice of Social Research. 15th ed. Cengage Learning Inc, 2021.