APA引文

Dubicka, I., & O'Keeffe, M. (2013). English for international tourism: Pre-Intermediate coursebook. England: Pearson.

Trích dẫn kiểu Chicago

Dubicka, Iwonna, và Margaret O'Keeffe. English for International Tourism: Pre-Intermediate Coursebook. England: Pearson, 2013.

MLA引文

Dubicka, Iwonna, và Margaret O'Keeffe. English for International Tourism: Pre-Intermediate Coursebook. England: Pearson, 2013.

警告：這些引文格式不一定是100％准確.