Coombs, Charles A., 1918-1981. Letter, Charles Coombs to Allan Sproul, . https://fraser.stlouisfed.org/archival/1174/item/3428, accessed on May 4, 2024.
Coombs, Charles A., 1918-1981. Letter, Charles Coombs to Allan Sproul, . https://fraser.stlouisfed.org/archival/1174/item/3428, accessed on May 4, 2024.