APA引文

Harold L. Vogel. (2012). Travel Industry Economics (2.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Harold L. Vogel. Travel Industry Economics. 2. Cambridge University Press, 2012.

MLA引文

Harold L. Vogel. Travel Industry Economics. 2. Cambridge University Press, 2012.

警告：這些引文格式不一定是100％准確.