United States. Congress. Senate. Committee on Education and Labor, 1870-1946 and Seventieth Congress, 1927-1929. Unemployment in the United States : Hearings Before the Committee on Education and Labor, United States Senate, Seventieth Congress, Second Session, Pursuant to S. Res. 219, December 11, 12, 13, 14, 17, 18, and 19, 1928, January 9 and 14, February 7, 8, and 9, 1929 , Washington: Government Printing Office, December 11, 12, 13, 14, 17, 18, and 19, 1928, January 9 and 14, February 7, 8, and 9, 1929, https://fraser.stlouisfed.org/title/98, accessed on August 6, 2024.