The Soviet census conducted in January 1970 was the first census held in Soviet Union (USSR) in eleven years (since January 1959).[1][2]
^Harris, Chauncy D. (1971). "Urbanization and Population Growth in the Soviet Union, 1959-1970". Geographical Review. 61 (1): 102–124. doi:10.2307/213369. JSTOR213369.