El experimento franquista de turismo social: La obra sindical de educación y descanso de la posguerra al desarrollismo (1939 - 1962) / Daniel Lanero Táboas
Macrothesaurus : para tratamento da informação relativa ao desenvolvimento económico social / OCDE/ONU
Impact of completion of the internal market on the tourism sector / Commission of the European Communities, DG XXIII
Is rural tourism a lever for economic and social development? / Xavier Greffe