APA (7th ed.) Zitazioa

Babbie, E. R. (1986). The practice of social research. Wadsworth.

Chicago Style (17th ed.) Zitazioa

Babbie, Earl R. The Practice of Social Research. Belmont, Calif.: Wadsworth, 1986.

MLA (9th ed.) Zitazioa

Babbie, Earl R. The Practice of Social Research. Wadsworth, 1986.