ECE symposium on problem relating to environment proceedings and documentation of the symposium - United Nations. Economic Commission for Europe (New York Economic Commission for Europe, 1971)
Organised by United Nations Economic Commission for Europe and held from 2 to 15 May, 1971 in Prague (Czechoslovakia)with a study to us to the region of Ostrava (Czechoslovakia)and Katowice (Poland)
Keywords: Ecology; United Nations-Economic conditions; Czechoslovakia-Economic conditions