Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
United States. Bureau of Labor Statistics,State and regional variations in prospective labor supply,,"U.S. Dept. of Labor, Bureau of Labor Statistics,For sale by the Supt. of Docs., U.S. Govt. Print. Off.",1947,Bulletin,,,,https://cir.nii.ac.jp/crid/1130282269008093952