Sproul, Allan, 1896-1978. Letter, Sproul to Senator Paul Douglas, [Sproul: BOG Corresp. 1953-54], . https://fraser.stlouisfed.org/archival/1174/item/3403, accessed on April 19, 2024.
Sproul, Allan, 1896-1978. Letter, Sproul to Senator Paul Douglas, [Sproul: BOG Corresp. 1953-54], . https://fraser.stlouisfed.org/archival/1174/item/3403, accessed on April 19, 2024.