
1.		The distinction between short and long holidays / Hanspeter Schmidhauser Autor: Schmidhauser, Hanspeter
2.		Études Économiques de l'OCDE / Organisation de Coopération et de Développement Économiques Data Publicação: 1963- Co col. autor sec.: OCDE. [s.n]
3.		International tourism reports : database
4.		International tourism reports : database
5.		Trends in real tourism exchange rates
6.		Switzerland outbound / Nancy Cockerell Autor: Cockerell, Nancy
7.		Le labyrinthe aux oiseaux / Yves d'Yvoire Autor: d Yvoire, Yves
8.		Portugal : Madeira / Michelin Data Publicação: 1970 Col.autor: Michelin
9.		Annuaire européen du temps libre et du tourisme / R. Delbaere, [et al.] Autor: Delbaere, R. Data Publicação: 1992 Coautor: Fleming, I. Marroquin, I. Gomez Van der Duim, R.
10.		International tourism reports : database
11.		The travel and tourism industry in Switzerland
12.		Le nouveau troisième âge / Robert W. Buff; Institut Dichter de Zurich Data Publicação: 1991 Coautor: Buff, Robert W. Col.autor: Institut Dichter de Zurich