National Conference on Labor Legislation , Perkins, Frances, 1880-1965 and United States. Bureau of Labor Statistics. Proceedings of the National Conference for Labor Legislation: Held at Washington, D.C., February 14 and 15, 1934 : Bulletin of the United States Bureau of Labor Statistics, No. 583 , Washington, D.C: U.S. G.P.O., July 1934, https://fraser.stlouisfed.org/title/4110, accessed on August 29, 2024.