APA引文

Youell, R. (1998). Tourism: An introduction. Harlow, Essex: Addison Wesley Longman.

Trích dẫn kiểu Chicago

Youell, Ray. Tourism: An Introduction. Harlow, Essex: Addison Wesley Longman, 1998.

MLA引文

Youell, Ray. Tourism: An Introduction. Harlow, Essex: Addison Wesley Longman, 1998.

警告：這些引文格式不一定是100％准確.