APA引文

Robin Walker, K. H. (2008). "English for international tourism 3student’s book".

Trích dẫn kiểu Chicago

Robin Walker, Keith Harding. "English for International Tourism 3student’s Book". 2008.

MLA引文

Robin Walker, Keith Harding. "English for International Tourism 3student’s Book". 2008.

警告：这些引文格式不一定是100％准确.