Cotton, D. (2005). Market leader: Intermediate business English. England: Pearson Longman.
Trích dẫn kiểu ChicagoCotton, David. Market Leader: Intermediate Business English. England: Pearson Longman, 2005.
MLA citiranjeCotton, David. Market Leader: Intermediate Business English. England: Pearson Longman, 2005.
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