Organización Mundial del Turismo & World Tourism Organization. (2001). Compendium of tourism statistics (21st ed.). World Tourism Organization.
Chicago Style (17th ed.) CitationOrganización Mundial del Turismo and World Tourism Organization. Compendium of Tourism Statistics. 21st ed. Madrid: World Tourism Organization, 2001.
MLA (9th ed.) CitationOrganización Mundial del Turismo and World Tourism Organization. Compendium of Tourism Statistics. 21st ed. World Tourism Organization, 2001.
Warning: These citations may not always be 100% accurate.