Federal Reserve Bank of Chicago. "May 1, 1941, Volume 24, Number 4," Business Conditions (Federal Reserve Bank of Chicago) (May 1, 1941). https://fraser.stlouisfed.org/title/5562/item/539939, accessed on May 9, 2024.
Federal Reserve Bank of Chicago. "May 1, 1941, Volume 24, Number 4," Business Conditions (Federal Reserve Bank of Chicago) (May 1, 1941). https://fraser.stlouisfed.org/title/5562/item/539939, accessed on May 9, 2024.