Williams, S. (2009). Tourism geography: A new synthesis (Second edition.). Routledge.
Cita Chicago (17th ed.)Williams, Stephen. Tourism Geography: A New Synthesis. Second edition. London: Routledge, 2009.
Cita MLA (9th ed.)Williams, Stephen. Tourism Geography: A New Synthesis. Second edition. Routledge, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.