Objetivos, misiones, proyectos, cooperation tecnica / Organizacion Mundial del Turismo
COTA(S): 5650-B
World Tourism Directory '95/96 / Burkhard Herbote
COTA(S): 5696
Asia tourism : towards new horizons / World Tourism Organization
COTA(S): 6679
Objectifs, missions, projets, coopération technique / Organisation Mondiale du Tourisme
COTA(S): 5650; 5650-A