Board of Governors of the Federal Reserve System (U.S.). Division of Research and Statistics
and Eccles, Marriner S. (Marriner Stoddard), 1890-1977. Letter to Mr. Opper, Box 4, Folder 2, Item 7,
Marriner S. Eccles Papers.
https://fraser.stlouisfed.org/archival/1343/item/462137, accessed on October 19, 2024.