APA ציטוט

 Dubicka, I. (2009).  English for international tourism.  Longman.

Trích dẫn kiểu Chicago

 Dubicka, Iwonna.  English for International Tourism.  Longman, 2009.

ציטוט MLA

 Dubicka, Iwonna.  English for International Tourism.  Longman, 2009.