Geographical distribution of the Czechoslovak population, by elevation range of districts 1869-1979.
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D003604:Czechoslovakia; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D005843:Geography; D011153:Population; D012942:Social Sciences
Czechoslovakia; Demography; Developed Countries; Eastern Europe; Europe; Geographic Factors; Historical Demography; Historical Survey; Population; Social Sciences; Spatial Distribution