Federal Reserve Bank of Chicago. "September 1952," Business Conditions (Federal Reserve Bank of Chicago) (September 1952). https://fraser.stlouisfed.org/title/5562/item/540075, accessed on April 30, 2024.
Federal Reserve Bank of Chicago. "September 1952," Business Conditions (Federal Reserve Bank of Chicago) (September 1952). https://fraser.stlouisfed.org/title/5562/item/540075, accessed on April 30, 2024.