Federal Reserve Bank of Chicago. "September 29, 1937, Volume 20, Number 9," Business Conditions (Federal Reserve Bank of Chicago) (September 29, 1937). https://fraser.stlouisfed.org/title/5562/item/539896, accessed on March 28, 2024.
Federal Reserve Bank of Chicago. "September 29, 1937, Volume 20, Number 9," Business Conditions (Federal Reserve Bank of Chicago) (September 29, 1937). https://fraser.stlouisfed.org/title/5562/item/539896, accessed on March 28, 2024.