Federal Reserve Bank of Chicago. "January 1948," Business Conditions (Federal Reserve Bank of Chicago) (January 1948). https://fraser.stlouisfed.org/title/5562/item/540019, accessed on May 2, 2024.
Federal Reserve Bank of Chicago. "January 1948," Business Conditions (Federal Reserve Bank of Chicago) (January 1948). https://fraser.stlouisfed.org/title/5562/item/540019, accessed on May 2, 2024.