Sharpley, R. (2015). Travel and tourism. Sage Publications.
Trích dẫn kiểu ChicagoSharpley, Richard. Travel and Tourism. Sage Publications, 2015.
MLA引文Sharpley, Richard. Travel and Tourism. Sage Publications, 2015.
警告：這些引文格式不一定是100％准確.
APA引文