Federal Reserve Bank of Chicago. "January 1951," Business Conditions (Federal Reserve Bank of Chicago) (January 1951). https://fraser.stlouisfed.org/title/5562/item/540055, accessed on May 16, 2024.
Federal Reserve Bank of Chicago. "January 1951," Business Conditions (Federal Reserve Bank of Chicago) (January 1951). https://fraser.stlouisfed.org/title/5562/item/540055, accessed on May 16, 2024.