Hansen, Alvin H., 1887-1975 , Samuelson, Paul A. (Paul Anthony), 1915-2009 and United States. Bureau of Labor Statistics. Economic Analysis of Guaranteed Wages : Bulletin of the United States Bureau of Labor Statistics, No. 907 , Washington, D.C.: [United States Bureau of Labor Statistics], 1947, https://fraser.stlouisfed.org/title/4354, accessed on October 3, 2024.