Lawday, C. I-Spy: Course Book 3 (1a. ed.). Oxford University Press.
Čikaški stil citiranja (17. izdanje)Lawday, Cathy. I-Spy: Course Book 3. 1a. ed. New York: Oxford University Press.
MLA način citiranja (9. izdanje)Lawday, Cathy. I-Spy: Course Book 3. 1a. ed. Oxford University Press.
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