| 1. | Portugal: travel & tourism sowing the seeds of growth / World Travel & Tourism CouncilData Publicação: 2005 Col.autor: World Travel & Tourism Council |  | |
| 2. | Portugal: travel & tourism: a world of opportunity: the 2003 travel & tourism economic research / WTTCData Publicação: 2003 Col.autor: World Travel & Tourism Council | | |
| 3. | The Algarve: the impact of travel and tourism on jobs and the economy / World Travel & Tourism CouncilData Publicação: 2003 Col.autor: World Travel & Tourism Council | | |
| 4. | Algarve : o impacto das viagens e turismo no emprego e na economia / World Travel & Tourism CouncilData Publicação: 2003 Col.autor: World Travel & Tourism Council | | |
| 5. | South Africa : the impact of travel and tourism on jobs and the economy / World Travel & Tourism CouncilData Publicação: 2002 Col.autor: World Travel & Tourism Council | | |
| 6. | European Union : travel & tourism / World Travel & Tourism CouncilData Publicação: 1997 Col.autor: World Travel & Tourism Council | | |