Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
United States. Bureau of Labor Statistics,"Hourly entrance rates paid to common laborers, 1942",,"U.S. G.P.O.,U.S. Dept. of Labor, Bureau of Labor Statistics",1943,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000798147141248