Federal Reserve Bank of Chicago. "July 1975," Business Conditions (Federal Reserve Bank of Chicago) (July 1975). https://fraser.stlouisfed.org/title/5562/item/540349, accessed on May 2, 2024.
Federal Reserve Bank of Chicago. "July 1975," Business Conditions (Federal Reserve Bank of Chicago) (July 1975). https://fraser.stlouisfed.org/title/5562/item/540349, accessed on May 2, 2024.