Cita APA (7th ed.)
Sharpley, R. (2006). Travel and tourism. Sage Publications.
Cita Chicago (17th ed.)
Sharpley, Richard. Travel and Tourism. Thousand Oaks, CA: Sage Publications, 2006.
Cita MLA (9th ed.)
Sharpley, Richard. Travel and Tourism. Sage Publications, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.