Yearbook of tourism statistics : 2000-2004.
- Madrid : World Tourism Organization (UNWTO), 2006
- xiii, 902 páginas
The present yearbook of tourism statistics containe all those dates officially received from national tourism administrations and nationals statistical offices. But all the data received are subject to different kind of controls and any discrepancies observed are consulted with the informing unit that confirms or rectifies, if necessary, the data previously sent