Cotton, D., Falvey, D., & Kent, S. (2011). Market leader: Intermediate business English course book =. H.: Văn hoá-Thông tin.
Chicago Style aipamenaCotton, David., David Falvey, và Simon Kent. Market Leader: Intermediate Business English Course Book =. H.: Văn hoá-Thông tin, 2011.
MLA aipamenaCotton, David., David Falvey, và Simon Kent. Market Leader: Intermediate Business English Course Book =. H.: Văn hoá-Thông tin, 2011.
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