Federal Reserve Bank of Chicago. "April 1942," Business Conditions (Federal Reserve Bank of Chicago) (April 1942). https://fraser.stlouisfed.org/title/5562/item/539950, accessed on April 19, 2024.
Federal Reserve Bank of Chicago. "April 1942," Business Conditions (Federal Reserve Bank of Chicago) (April 1942). https://fraser.stlouisfed.org/title/5562/item/539950, accessed on April 19, 2024.