Dyfyniad APA

Dubicka, I., & Iwonna Dubicka; Margaret O'Keeffe. (2011). Market leader: Advanced business English course book. Harlow: Pearson Longman,Financial Times.

Dyfyniad Arddull Chicago

Dubicka, Iwonna, và Iwonna Dubicka; Margaret O'Keeffe. Market Leader: Advanced Business English Course Book. Harlow: Pearson Longman,Financial Times, 2011.

Dyfyniad MLA

Dubicka, Iwonna, và Iwonna Dubicka; Margaret O'Keeffe. Market Leader: Advanced Business English Course Book. Harlow: Pearson Longman,Financial Times, 2011.

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