Federal Reserve Bank of Chicago. "June 1949," Business Conditions (Federal Reserve Bank of Chicago) (June 1949). https://fraser.stlouisfed.org/title/5562/item/540036, accessed on March 18, 2024.
Federal Reserve Bank of Chicago. "June 1949," Business Conditions (Federal Reserve Bank of Chicago) (June 1949). https://fraser.stlouisfed.org/title/5562/item/540036, accessed on March 18, 2024.