World Tourism Organization. (1997). Faced with worldwide competition and structural changes: What are the tourism responsibilities of European governments;, WTO/CEU - ETC joint seminar, Salzburg, Austria, April 9 - 10, 1997. Madrid, Spain: World Tourism Organization.
Παραπομπή Chicago StyleWorld Tourism Organization. Faced With Worldwide Competition and Structural Changes: What Are the Tourism Responsibilities of European Governments;, WTO/CEU - ETC Joint Seminar, Salzburg, Austria, April 9 - 10, 1997. Madrid, Spain: World Tourism Organization, 1997.
Παραπομπή MLAWorld Tourism Organization. Faced With Worldwide Competition and Structural Changes: What Are the Tourism Responsibilities of European Governments;, WTO/CEU - ETC Joint Seminar, Salzburg, Austria, April 9 - 10, 1997. Madrid, Spain: World Tourism Organization, 1997.