1.		Demographic Change and tourism / World Tourism Organization; European Travel Commission Data Publicação: 2010 Col.autor: OMT ETC COTA(S): 12502; 12502-A-Dg; 12502-Dg; 12502-B-Dg; 15502.a
2.		Manual on tourism and poverty alleviation - practical steps for destination / World Tourism Organization Data Publicação: 2010 Col.autor: OMT COTA(S): 12496; 12496-Dg
3.		Tourism and biodiversity - achieving common goals towards sustainability / World Tourism Organization Data Publicação: 2010 Col.autor: OMT COTA(S): 12583; 12583-Dg