O'Hara, S. (2005). Improving your study skills: Study smart, study less. Wiley.
Čikaški stil citiranja (17. izdanje)O'Hara, Shelley. Improving Your Study Skills: Study Smart, Study Less. Hoboken, NJ: Wiley, 2005.
MLA način citiranja (8. izdanje)O'Hara, Shelley. Improving Your Study Skills: Study Smart, Study Less. Wiley, 2005.
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