The euro and the tourism industry / European Commission
Euro : guia de preparação para retalhistas / David Croughan, Guillaume Lepecq
Silk road tourism - current issues : a report on the third international meeting on the silk road, Tbilisi, Georgia, 2-5 November 1998 / World Tourism Organization
Determining future travel behavior from past travel experience and perceptions of risk and safety / Sevil F. Sönmez, Alan R. Graefe