Dyfyniad APA

Cotton, D. (2007). Market leader: Pre-intermediate business English. England: Pearson Education Ltd.

Dyfyniad Arddull Chicago

Cotton, David. Market Leader: Pre-intermediate Business English. England: Pearson Education Ltd, 2007.

Dyfyniad MLA

Cotton, David. Market Leader: Pre-intermediate Business English. England: Pearson Education Ltd, 2007.

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