| 1. | Australia travel & tourism : a new economic perspective / World Travel & Tourism CouncilData Publicação: 1996 Col.autor: World Travel & Tourism Council |  | |
| 2. | United States travel & tourism : a new economic perspective / World Travel & Tourism CouncilData Publicação: 1995 Col.autor: World Travel & Tourism Council | | |
| 3. | Mexico travel & tourism : millennium vision / World Travel & Tourism CouncilData Publicação: 1996 Col.autor: World Travel & Tourism Council | | |
| 4. | United Kingdom travel & tourism : millennium vision / World Travel & Tourism CouncilData Publicação: 1996 Col.autor: World Travel & Tourism Council | | |