Dyfyniad APA

David Cotton. (2005). Market leader: Intermediate business english course book (new edition.). England: Pearson Longman.

Dyfyniad Arddull Chicago

David Cotton. Market Leader: Intermediate Business English Course Book. new edition. England: Pearson Longman, 2005.

Dyfyniad MLA

David Cotton. Market Leader: Intermediate Business English Course Book. new edition. England: Pearson Longman, 2005.

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