Tourism 2020 vision : Americas / World Tourism Organization
COTA(S): 8341-II
The Meetings, Incentives, Conferences and Exhibitions Industry / Adele Ladkin e Julie Spiler
COTA(S): 19935
The encyclopedia of ecotourism / David B. Weaver [et al.]
COTA(S): 8421
The World's Leading Outbound Markets / Christine Smith e Paul Jenner
COTA(S): 19936