Federal Reserve Bank of Cleveland. "September 1967," Economic Review (Federal Reserve Bank of Cleveland) (September 1967). https://fraser.stlouisfed.org/title/1328/item/4288, accessed on April 30, 2024.
Federal Reserve Bank of Cleveland. "September 1967," Economic Review (Federal Reserve Bank of Cleveland) (September 1967). https://fraser.stlouisfed.org/title/1328/item/4288, accessed on April 30, 2024.