| 1. | Tourism challenges in the 21st century: human resource development in Asia and the Pacific / World Tourism OrganizationData Publicação: 2000 Col.autor: OMT |  | |
| 2. | Tourism 2020 vision : Americas / World Tourism OrganizationData Publicação: 2000 Col.autor: OMT | | |
| 3. | Tourism 2020 vision : East Asia and the Pacific / World Tourism OrganizationData Publicação: 2000 Col.autor: OMT | | |