The changes of tourism in the eighties and their consequences proceedings of the 33rd congress of the Association Internationale d'Experts Scientifiques du Tourisme, Nairobi, 4-10 September 1983. - Congress of the Association Internationale d'Experts Scientifiques du Tourisme Nairobi) 1983 (St. Gall AIEST, 1983)
Keywords: Tourist trade -- Congresses