[The population of the USSR:  regional age structures in 1970].
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D017677:Age Distribution; D000367:Age Factors; D003710:Demography; D019049:Developed Countries; D005843:Geography; D011153:Population; D011154:Population Characteristics; D012959:Socioeconomic Factors; D014586:USSR
Age Distribution; Age Factors; Demographic Factors; Demographic Impact; Developed Countries; Geographic Factors; Population; Population Characteristics; Socioeconomic Factors; Ussr