Social needs and their realization in tourism proceedings of the 27th Congress of the Association Internationale d' Experts Scientifiques du Tourisme , Pologne, 4-11 September 1977. - Congress of the Association Internationale d' Experts Scientifiques du Tourisme Pologne) 1977 (Berne, Switzerland AIEST, 1977)
Keywords: Tourism -- Social aspects -- Congresses