Federal Reserve Bank of Chicago. "June 1952," Business Conditions (Federal Reserve Bank of Chicago) (June 1952). https://fraser.stlouisfed.org/title/5562/item/540072, accessed on May 1, 2024.
Federal Reserve Bank of Chicago. "June 1952," Business Conditions (Federal Reserve Bank of Chicago) (June 1952). https://fraser.stlouisfed.org/title/5562/item/540072, accessed on May 1, 2024.