Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
International Association of Governmental Labor Officials. Convention and United States. Bureau of Labor Statistics,"Labor laws and their administration, 1940 : proceedings of the twenty-sixth convention of the International Association of Governmental Labor Officials, New York City, September 1940",,U.S. G.P.O.,1941,Bulletin,,,,https://cir.nii.ac.jp/crid/1130282272504413568