APA (7th ed.) Zitazioa
Babbie, E. (2010). The practice of social research (12th ed.). Thomson/Wadsworth.
Chicago Style (17th ed.) Zitazioa
Babbie, Earl. The Practice of Social Research. 12th ed. Belmont, CA: Thomson/Wadsworth, 2010.
MLA (9th ed.) Zitazioa
Babbie, Earl. The Practice of Social Research. 12th ed. Thomson/Wadsworth, 2010.
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