title: USSR ethnic composition:  preliminary 1989 census results.
mesh_terms: D003142:Communication; D003469:Culture; D003710:Demography; D019049:Developed Countries; D005006:Ethnicity; D007802:Language; D011153:Population; D011154:Population Characteristics; D014586:USSR
keywords: Communication; Cultural Background; Demographic Factors; Developed Countries; Ethnic Groups; Language; Population; Population Characteristics; Ussr