World Tourism Organization., & United Nations Environment Programme. (2001). Island tourism in Asia and the Pacific: A report on WTO/UNEP International Conference on Sustainable Tourism in the Island of the Asia-Pacific Region, Sanya, Island of Hainan, China, 6-8 December 2000. Madrid, Spain: World Tourism Organization.
Παραπομπή Chicago StyleWorld Tourism Organization., and United Nations Environment Programme. Island Tourism in Asia and the Pacific: A Report On WTO/UNEP International Conference On Sustainable Tourism in the Island of the Asia-Pacific Region, Sanya, Island of Hainan, China, 6-8 December 2000. Madrid, Spain: World Tourism Organization, 2001.
Παραπομπή MLAWorld Tourism Organization., and United Nations Environment Programme. Island Tourism in Asia and the Pacific: A Report On WTO/UNEP International Conference On Sustainable Tourism in the Island of the Asia-Pacific Region, Sanya, Island of Hainan, China, 6-8 December 2000. Madrid, Spain: World Tourism Organization, 2001.