Colbourn, S. (2007). Robin hood (abridged version): 4 (pre-intermediate level). Macmillan.
Čikaški stil citiranja (17. izdanje)Colbourn, Stephen. Robin Hood (abridged Version): 4 (pre-intermediate Level). Oxford: Macmillan, 2007.
MLA način citiranja (9. izdanje)Colbourn, Stephen. Robin Hood (abridged Version): 4 (pre-intermediate Level). Macmillan, 2007.
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