APA (7th ed.) Zitazioa

Babbie, E. R. (1979). The practice of social research (2nd. ed.). Wadsworth.

Chicago Style (17th ed.) Zitazioa

Babbie, Earl R. The Practice of Social Research. 2nd. ed. Carlifornia: Wadsworth, 1979.

MLA (9th ed.) Zitazioa

Babbie, Earl R. The Practice of Social Research. 2nd. ed. Wadsworth, 1979.