Dyfyniad APA

Rogers, J., & John Rogers. (2007). Market leader: Pre -intermediate business english practice file. Harlow: Longman.

Dyfyniad Arddull Chicago

Rogers, John, và John Rogers. Market Leader: Pre -intermediate Business English Practice File. Harlow: Longman, 2007.

Dyfyniad MLA

Rogers, John, và John Rogers. Market Leader: Pre -intermediate Business English Practice File. Harlow: Longman, 2007.

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