Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.