Schwartz, B. M. (2015). An easy guide to research design and spss. Sage Publication, Los Angeles.
Čikaški stil citiranja (17. izdanje)Schwartz, Beth M. An Easy Guide to Research Design and Spss. Sage Publication, Los Angeles, 2015.
MLA način citiranja (9. izdanje)Schwartz, Beth M. An Easy Guide to Research Design and Spss. Sage Publication, Los Angeles, 2015.
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