Clarke, S. (2014). In company 3.0: Pre-intermediate. London: Macmillan.
Trích dẫn kiểu ChicagoClarke, Simon. In Company 3.0: Pre-intermediate. London: Macmillan, 2014.
Deismireacht MLAClarke, Simon. In Company 3.0: Pre-intermediate. London: Macmillan, 2014.
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