Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Baldwin, Godfrey S. and United States. Bureau of the Census","Population projections by age and sex : for the republics and major economic regions of the U.S.S.R., 1970 to 2000",,For sale by the Superintendent of Document,1979,International population reports,,,,https://cir.nii.ac.jp/crid/1130282271010709248