Dyfyniad APA

David Cotton. (2011). Market Leader: Pre-intermediate Business English. Hà Nội: Văn hóa Thông tin.

Dyfyniad Arddull Chicago

David Cotton. Market Leader: Pre-intermediate Business English. Hà Nội: Văn hóa Thông tin, 2011.

Dyfyniad MLA

David Cotton. Market Leader: Pre-intermediate Business English. Hà Nội: Văn hóa Thông tin, 2011.

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