BABBIE, E. (1984). Apple Logo For Teachers Earl Babbie. Wardsworth Publishing.
Čikaški stil citiranja (17. izdanje)BABBIE, Earl. Apple Logo For Teachers Earl Babbie. Wardsworth Publishing, 1984.
MLA način citiranja (8. izdanje)BABBIE, Earl. Apple Logo For Teachers Earl Babbie. Wardsworth Publishing, 1984.
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