Cotton, D., Falvey, D., & Kent, S. (2011). Market leader: Pre-intermediate business English course books. H.: Văn hoá-Thông tin.
Trích dẫn kiểu ChicagoCotton, David., David Falvey, và Simon Kent. Market Leader: Pre-intermediate Business English Course Books. H.: Văn hoá-Thông tin, 2011.
Deismireacht MLACotton, David., David Falvey, và Simon Kent. Market Leader: Pre-intermediate Business English Course Books. H.: Văn hoá-Thông tin, 2011.
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