Dyfyniad APA

Cotton, D. (2004). Market leader: Course book: Pre-Intermediate business English. New York: Longman.

Dyfyniad Arddull Chicago

Cotton, David. Market Leader: Course Book: Pre-Intermediate Business English. New York: Longman, 2004.

Dyfyniad MLA

Cotton, David. Market Leader: Course Book: Pre-Intermediate Business English. New York: Longman, 2004.

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