Tourism towards 2030 : global overview. - Madrid, Spain : World Tourism Organization, c2011. - 47 p. : col. charts ; 29 cm. ISBN: 9789284413997 (pbk.) 9284413990 (pbk.) Subjects--Topical Terms: Tourism--Forecasting.Tourism--Statistics. Dewey Class. No.: 338.4791 / TOU 2011