World Tourism Organization. (2000). Sustainable development of tourism: A compilation of good practices. World Tourism Organization.
Cita Chicago (17th ed.)World Tourism Organization. Sustainable Development of Tourism: A Compilation of Good Practices. [Madrid, Spain]: World Tourism Organization, 2000.
Cita MLA (9th ed.)World Tourism Organization. Sustainable Development of Tourism: A Compilation of Good Practices. World Tourism Organization, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.