APA citiranje

(1999). Focus on Proficiency. Edinburgh Gate, Halow: Addison-Wesley Longman.

Trích dẫn kiểu Chicago

Focus On Proficiency. Edinburgh Gate, Halow: Addison-Wesley Longman, 1999.

MLA citiranje

Focus On Proficiency. Edinburgh Gate, Halow: Addison-Wesley Longman, 1999.

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