Present age structure of Czechoslovakia.
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D017677:Age Distribution; D000367:Age Factors; D003604:Czechoslovakia; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D011153:Population; D011154:Population Characteristics
Age Distribution; Age Factors; Czechoslovakia; Demographic Factors; Developed Countries; Eastern Europe; Europe; Historical Survey; Population; Population Characteristics