Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Weitzman, Murrays S. and Elias, Andrew","The magnitude and distribution of civilian employment in the U.S.S.R., 1928-1959",,"U.S. Dept. of Commerce, Bureau of the Census",1961,International population reports,,,,https://cir.nii.ac.jp/crid/1130000794562328704