APA引文

Duckworth, M. (1998). Going international English for tourism: Workbook. American: Oxford University press.

Trích dẫn kiểu Chicago

Duckworth, Michael. Going International English for Tourism: Workbook. American: Oxford University press, 1998.

MLA引文

Duckworth, Michael. Going International English for Tourism: Workbook. American: Oxford University press, 1998.

警告：這些引文格式不一定是100％准確.