Federal Reserve Bank of Chicago. "December 1951," Business Conditions (Federal Reserve Bank of Chicago) (December 1951). https://fraser.stlouisfed.org/title/5562/item/540066, accessed on April 20, 2024.
Federal Reserve Bank of Chicago. "December 1951," Business Conditions (Federal Reserve Bank of Chicago) (December 1951). https://fraser.stlouisfed.org/title/5562/item/540066, accessed on April 20, 2024.