United States. Bureau of Labor Statistics. Public Social Security Programs in the United States, 1949-50 : Analysis of Laws, Federal-state Cooperation, Operating Experience, Further Needs : Bulletin of the United States Bureau of Labor Statistics, No. 982 , Washington, D.C: U.S. G.P.O., 1950, https://fraser.stlouisfed.org/title/4387, accessed on November 15, 2024.