Federal Reserve Bank of Chicago. "December 1949," Business Conditions (Federal Reserve Bank of Chicago) (December 1949). https://fraser.stlouisfed.org/title/5562/item/540042, accessed on May 3, 2024.
Federal Reserve Bank of Chicago. "December 1949," Business Conditions (Federal Reserve Bank of Chicago) (December 1949). https://fraser.stlouisfed.org/title/5562/item/540042, accessed on May 3, 2024.