Federal Reserve Bank of Chicago. "January 1, 1941, Volume 23, Number 12," Business Conditions (Federal Reserve Bank of Chicago) (January 1, 1941). https://fraser.stlouisfed.org/title/5562/item/539935, accessed on May 3, 2024.
Federal Reserve Bank of Chicago. "January 1, 1941, Volume 23, Number 12," Business Conditions (Federal Reserve Bank of Chicago) (January 1, 1941). https://fraser.stlouisfed.org/title/5562/item/539935, accessed on May 3, 2024.