1.		Tourism 2000 : building a sustainable future for Asia-Pacific / org. World Tourism Organization Data Publicação: 1997 Col.autor: Asia Pacific ministers conference on tourism and environment. 1997 Co col. autor sec.: OMT COTA(S): 6729
2.		Guide for local authorities on developing sustainable tourism / World Tourism Organization Data Publicação: 1998 Col.autor: OMT COTA(S): 7083; 7083-a
3.		Guide à l'intention des autorités locales pour un développement durable du tourisme : Afrique subsaharienne / Organisation Mondiale du Tourisme Data Publicação: 1999 Col.autor: OMT COTA(S): 7083
4.		Guide for local authorities on developing sustainable tourism : Asia and the Pacific / World Tourism Organization Data Publicação: 1999 Col.autor: OMT COTA(S): 7083.3
5.		Guide à l'intention des autorités locales: développement durable du tourisme / Organisation Mondiale du Tourisme Data Publicação: 1998 Col.autor: OMT COTA(S): 7083-A; 7083-A-a; 7083-A-b; 7083-A-c
6.		Sustainable development of tourism : a compilation of good practices / World Tourism Organization Data Publicação: 2000 Col.autor: OMT COTA(S): 8083
7.		Tourism 2020 vision : Americas / World Tourism Organization Data Publicação: 2000 Col.autor: OMT COTA(S): 8341-II
8.		The German ecotourism market / World Tourism Organization Data Publicação: 2001 Col.autor: OMT COTA(S): 8347.10
9.		The British ecotourism market / World Tourism Organization Data Publicação: 2001 Col.autor: OMT COTA(S): 8347.11
10.		The U. S. ecotourism market / World Tourism Organization Data Publicação: 2002 Col.autor: OMT COTA(S): 8347.12
11.		The Italian ecotourism market / World Tourism Organization Data Publicação: 2002 Col.autor: OMT COTA(S): 8347.13
12.		The Canadian ecotourism market / World Tourism Organization Data Publicação: 2002 Col.autor: OMT COTA(S): 8347.15