1. | Tourism 2020 vision : Africa / World Tourism OrganizationData Publicação: 2000 Col.autor: World Tourism Organization | ||
2. | Making tourism more sustainable : A guide for policy makers / United Nations Environment Programme, World Tourism OrganizationData Publicação: 2005 Col.autor: United Nations Environment Programme | ||
3. | Air Connectivity and its Impact on Tourism in Asia and the Pacific / World Tourism Organization (UNWTO)Data Publicação: 2014 Col.autor: World Tourism Organization | ||
4. | Responding to Climate Change – Tourism Initiatives in Asia and the Pacific / World Tourism Organization (UNWTO)Data Publicação: 2014 Col.autor: World Tourism Organization | ||
5. | Global Report on Adventure Tourism / World Tourism Organization (UNWTO)Data Publicação: 2014 Col.autor: World Tourism Organization |