Travel & tourism 2011 / World Travel & Tourism Council
Travel & tourism economic impact: Portugal / World Travel & Tourism Council
Progress and priorities 2004/2005 / World Travel & Tourism Council
Algarve : o impacto das viagens e turismo no emprego e na economia / World Travel & Tourism Council
Positions: the future of air travel an action plan for sustainable growth - a report by the WTTC infrastructure task force / World Travel & Tourism Council