[Early vital statistics in Czechoslovakia].
Sekera
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D003604:Czechoslovakia; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D011154:Population Characteristics; D012106:Research; D012942:Social Sciences; D014798:Vital Statistics
Czechoslovakia; Demography; Developed Countries; Eastern Europe; Europe; Historical Demography; Historical Survey; Population Statistics; Research Methodology; Social Sciences; Vital Statistics