1. Tourism in Cyprus;Andronicou,1979
2. Animation im Urlaub;Animation,1975
3. Role Differentiation in Small Decision Making Groups;Bales,1955
4. Trekking Tourismus in Nepal;Baumgartner,1978
5. The Grand Tour: Travel as an Educational Device: 1600–1800;Brodsky-Porges;Annals of Tourism Research,1981