Guia de Mercado / ICEP
Shining in the media spotlight : a communications handbook for tourism professionals / World Tourism Organization
The national and regional structures of official tourist organisations in european countries / by Robert Hollier for the European Travel Commission
Rede de cidades europeias dos descobrimentos : reunião de fundação, 26 Abril 1994 / org. Comissões Nacionais da UNESCO de Bélgica, Espanha e Portugal
Business and conference tourism in the european economic area : final report / ed. Horwath Axe Consultants
Tourism in Europe / European Commission, EUROSTAT, DG XXIII