Dubicka, I. (2007). Market leader: Avanced business English. England: Pearson Education Ltd.
Čikaški stil citiranjaDubicka, Iwonna. Market Leader: Avanced Business English. England: Pearson Education Ltd, 2007.
MLA način citiranjaDubicka, Iwonna. Market Leader: Avanced Business English. England: Pearson Education Ltd, 2007.
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