Federal Reserve Bank of Chicago. "April 1, 1941, Volume 24, Number 3," Business Conditions (Federal Reserve Bank of Chicago) (April 1, 1941). https://fraser.stlouisfed.org/title/5562/item/539938, accessed on March 28, 2024.
Federal Reserve Bank of Chicago. "April 1, 1941, Volume 24, Number 3," Business Conditions (Federal Reserve Bank of Chicago) (April 1, 1941). https://fraser.stlouisfed.org/title/5562/item/539938, accessed on March 28, 2024.