BABBIE, E. (1989). The Practice Of Social Research Earl Babbie. Wadsworth Publishing.
Čikaški stil citiranja (17. izdanje)BABBIE, Earl. The Practice Of Social Research Earl Babbie. Wadsworth Publishing, 1989.
MLA način citiranja (8. izdanje)BABBIE, Earl. The Practice Of Social Research Earl Babbie. Wadsworth Publishing, 1989.
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