Estudo internacional sobre viajantes em trânsito / Organização Mundial do Turismo
COTA(S): 6446
Study on visa facilitation in the silk-road countries / World Tourism Organization
COTA(S): 8351
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
COTA(S): 8834
Seminário - estadisticas de frontera en los paises europeos: metodologia de la estadistica de movimentos turisticos en fronteras terrestres / Organização Mundial de Turismo
COTA(S): 9505
Voyages a l'étranger formalités de frontiéres / Organisation Mondiale du Tourisme
COTA(S): 115.01; 115.02