The Meetings, Incentives, Conferences and Exhibitions Industry / Adele Ladkin e Julie Spiler
The encyclopedia of ecotourism / David B. Weaver [et al.]
Forum - "Os Cinco, Portugal e o Turismo: cooperação para o futuro" / ICEP
WTO in Africa 2004-2005 / World Tourism Organization
Tourism 2020 vision : Africa / World Tourism Organization
The World's Leading Outbound Markets / Christine Smith e Paul Jenner