APA citiranje

Duckworth, M. (1992). First Class: English for Tourism : Workbook. Hong Kong: Oxford University.

Trích dẫn kiểu Chicago

Duckworth, Michael. First Class: English for Tourism : Workbook. Hong Kong: Oxford University, 1992.

MLA citiranje

Duckworth, Michael. First Class: English for Tourism : Workbook. Hong Kong: Oxford University, 1992.

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