World Tourism Organization Seminar Proceedings. (2006). The future of city tourism in Europe =: L´avenir du tourisme urbain en Europe. World Tourism Organization.
Cita Chicago Style (17a ed.)World Tourism Organization Seminar Proceedings. The Future of City Tourism in Europe =: L´avenir Du Tourisme Urbain En Europe. Madrid: World Tourism Organization, 2006.
Cita MLA (8a ed.)World Tourism Organization Seminar Proceedings. The Future of City Tourism in Europe =: L´avenir Du Tourisme Urbain En Europe. World Tourism Organization, 2006.
Precaución: Estas citas no son 100% exactas.