1.		A hospitalidade é universal e precisa-se, dentro e fora do hotel / Cristina Ciza Vieira Autor: Vieira, Cristina Siza COTA(S): RP-381
2.		Agir através do turismo / Diogo Assis Autor: Assis, Diogo COTA(S): RP-381
3.		Exploring the boundaries of a new moral order for tourism's global code of ethics: an opinion piece on the position of animals in the tourism industry / David A. Fennell Autor: Fennell, David A. COTA(S): RE-926
4.		Le marché britannique de l'écotourisme / Organisation Mondiale du Tourisme Data Publicação: 2002 Col.autor: OMT COTA(S): 8347.11-A
5.		L' étendue de l'exploitation sexuelle des enfants dans le tourisme / Organisation Mondiale du Tourisme Data Publicação: 2002 Col.autor: OMT COTA(S): 8783.03
6.		The British ecotourism market / World Tourism Organization Data Publicação: 2001 Col.autor: OMT COTA(S): 8347.11
7.		Sustainable development of ecotourism : a compilation of good practices / World Tourism Organization Data Publicação: 2001 Col.autor: OMT COTA(S): 8602
8.		Island tourism in Asia and the Pacific : a report on WTO-UNEP international conference on sustainable tourism in the islands of the Asia-Pacific region / World Tourism Organization Data Publicação: 2001 Col.autor: OMT COTA(S): 8601
9.		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
10.		Guide for local authorities on developing sustainable tourism / World Tourism Organization Data Publicação: 1998 Col.autor: OMT COTA(S): 7083; 7083-a