Federal Reserve Bank of Chicago. "November 1, 1940, Volume 23, Number 10," Business Conditions (Federal Reserve Bank of Chicago) (November 1, 1940). https://fraser.stlouisfed.org/title/5562/item/539933, accessed on April 19, 2024.
Federal Reserve Bank of Chicago. "November 1, 1940, Volume 23, Number 10," Business Conditions (Federal Reserve Bank of Chicago) (November 1, 1940). https://fraser.stlouisfed.org/title/5562/item/539933, accessed on April 19, 2024.