1.		Handbook on tourism product development / World Tourism Organization, European Travel Commission Col.autor: OMT Co col. autor: ETC COTA(S): 13935-Dg; 13935-A-Dg
2.		Report 2011/2012: making a real social and economic contribution to Europe's economy / European Cruise Council Col.autor: European Cruise Council COTA(S): 14404
3.		Tourism in the green economy / UNWTO Data Publicação: 2012 Col.autor: OMT COTA(S): 14237; 14237-Dg