Informações de ordem geral para estrangeiros que visitem Portugal
Empresas y actividades turisticas / Direccion General de Empresas y Actividades Turisticas
Algarve / Frederic P. Marjay
Market research by trade associations : A practical guide for trade associations on how to organise and undertake market research / Clodwing Kapferer, Wolfgang K.A. Disch; Organisation for Economic Co-operation and Development
Sintra / António José Pereira Forjaz
Ribatejo / Calderon Diniz