Proceedings of the fifth international conference of National Travel Organisations and the sixteenth general assembly of the International Union of Official Travel Organisations held in Dublin Castle, october 17-20, 1950 / World Tourism Organization
Manuel technique sur le rassemblement et la presentation des statistiques du tourisme national et international / Organisation Mondiale du Tourisme
Performance indicators for tourism destinations in Asia and the Pacific Region / World Tourism Organization
Tourism satellite account (TSA) / World Tourism Organization