Federal Reserve Bank of Chicago. "August 1975," Business Conditions (Federal Reserve Bank of Chicago) (August 1975). https://fraser.stlouisfed.org/title/5562/item/540350, accessed on May 1, 2024.
Federal Reserve Bank of Chicago. "August 1975," Business Conditions (Federal Reserve Bank of Chicago) (August 1975). https://fraser.stlouisfed.org/title/5562/item/540350, accessed on May 1, 2024.