Dubicka, I., & O'Keeffe, M. (2006). Market leader: Advanced business English. Teacher's resource book. Longman : Pearson Education ; Financial Times.
Chicago Style (17. basım) AtıfDubicka, Iwonna, ve Margaret O'Keeffe. Market Leader: Advanced Business English. Teacher's Resource Book. Harlow (England) : [London]: Longman : Pearson Education ; Financial Times, 2006.
MLA (8th ed.) AtıfDubicka, Iwonna, ve Margaret O'Keeffe. Market Leader: Advanced Business English. Teacher's Resource Book. Longman : Pearson Education ; Financial Times, 2006.
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