Federal Reserve Bank of Chicago. "March 1949," Business Conditions (Federal Reserve Bank of Chicago) (March 1949). https://fraser.stlouisfed.org/title/5562/item/540033, accessed on April 25, 2024.
Federal Reserve Bank of Chicago. "March 1949," Business Conditions (Federal Reserve Bank of Chicago) (March 1949). https://fraser.stlouisfed.org/title/5562/item/540033, accessed on April 25, 2024.