Bell, J., & Opie, C. (2002). Learning from research: Getting more from data. Open University Press.
Čikaški stil citiranja (17. izdanje)Bell, Judith, i Clive Opie. Learning from Research: Getting More from Data. Buckingham: Open University Press, 2002.
MLA način citiranja (9. izdanje)Bell, Judith, i Clive Opie. Learning from Research: Getting More from Data. Open University Press, 2002.
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