APA引文

Cowper, A. (2013). English for international tourism: Upper Intermediate workbook. Harlow, England: Pearson Education Limited.

Trích dẫn kiểu Chicago

Cowper, Anna. English for International Tourism: Upper Intermediate Workbook. Harlow, England: Pearson Education Limited, 2013.

MLA引文

Cowper, Anna. English for International Tourism: Upper Intermediate Workbook. Harlow, England: Pearson Education Limited, 2013.

警告：这些引文格式不一定是100％准确.