| 1. | Voluntary initiatives for sustainable tourism : worldwide inventory and comparative analysis of 104 eco-labels, awards and self-commitments / World Tourism OrganizationData Publicação: 2002 Col.autor: OMT |  | |
| 2. | Portugal e o mundo: o futuro do passado : 2. Timor Lorosae / Centro Nacional de CulturaData Publicação: 2002 Col.autor: Centro Nacional de Cultura | | |
| 3. | Le tourisme à l´heure des alliances, des fusions et des acquisitions / Organisation Mondiale du TourismeData Publicação: 2002 Col.autor: OMT | | |
| 4. | The economic impact of tourism in the islands of Asia and the Pacific : a report on the WTO international conference on tourism and island economies / World Tourism OrganizationData Publicação: 2002 Col.autor: OMT | | |