1. | Air transport and freer world trade / World Travel & Tourism CouncilData Publicação: 1997 Col.autor: World Travel & Tourism Council COTA(S): 6920 | ||
2. | Positions: the future of air travel an action plan for sustainable growth - a report by the WTTC infrastructure task force / World Travel & Tourism CouncilData Publicação: 2003 Col.autor: World Travel & Tourism Council COTA(S): 12577 |