Freire, R., & Jones, T. (2015). Q: Skills for success listening and speaking 4 (Second edition.). Oxford University Press.
Čikaški stil citiranja (17. izdanje)Freire, Robert, i Tamara Jones. Q: Skills for Success Listening and Speaking 4. Second edition. New York: Oxford University Press, 2015.
MLA način citiranja (9. izdanje)Freire, Robert, i Tamara Jones. Q: Skills for Success Listening and Speaking 4. Second edition. Oxford University Press, 2015.
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