Williams, S. (2009). Tourism Geography: A new synthesis (2nd Edn.). Routledge.
Cita Chicago (17th ed.)Williams, Stephen. Tourism Geography: A New Synthesis. 2nd Edn. New York, USA: Routledge, 2009.
Cita MLA (9th ed.)Williams, Stephen. Tourism Geography: A New Synthesis. 2nd Edn. Routledge, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.