United States. Works Progress Administration , Carmichael, Fitzhugh Lee, 1893- and Mitchell, John W. Current Changes in the Urban Relief Population, August 1935 : Trend of Employable Persons on Relief in Thirteen Cities by Occupational Groups, Series I, No. 17. Washington, DC: Works Progress Administration, Division of Social Research, January 15, 1936, https://fraser.stlouisfed.org/title/6720, accessed on October 8, 2024.