Letter, Allan Sproul to Oliver S. Powell, [Correspondence 1952-55, S; Correpondence 1952-55, P]
Sproul, Allan, 1896-1978. Letter, Allan Sproul to Oliver S. Powell, [Correspondence 1952-55, S; Correpondence 1952-55, P], . https://fraser.stlouisfed.org/archival/1174/item/3419, accessed on April 23, 2024.