Federal Reserve Bank of Chicago. "September 1973," Business Conditions (Federal Reserve Bank of Chicago) (September 1973). https://fraser.stlouisfed.org/title/5562/item/540327, accessed on March 29, 2024.
Federal Reserve Bank of Chicago. "September 1973," Business Conditions (Federal Reserve Bank of Chicago) (September 1973). https://fraser.stlouisfed.org/title/5562/item/540327, accessed on March 29, 2024.