APA
"United Nations E. C. F. E., Syposium on the Planning and Development of the Tourist Industry in the ECE Region (1975 : Yugoslavia) & "United Nations E. C. F. E. (1975). Proceedings. New: York United Naitons USA.
Chicago
"United Nations Economic Conference For Europe", Syposium on the Planning and Development of the Tourist Industry in the ECE Region (1975 : Yugoslavia) and "United Nations Economic Conference For Europe". 1975. Proceedings. New: York United Naitons USA.
Harvard
"United Nations E. C. F. E., Syposium on the Planning and Development of the Tourist Industry in the ECE Region (1975 : Yugoslavia) and "United Nations E. C. F. E. (1975). Proceedings. New: York United Naitons USA.
MLA
"United Nations Economic Conference For Europe", Syposium on the Planning and Development of the Tourist Industry in the ECE Region (1975 : Yugoslavia) and "United Nations Economic Conference For Europe". Proceedings. New: York United Naitons USA. 1975.
