Federal Reserve Bank of Cleveland. "April 1971," Economic Review (Federal Reserve Bank of Cleveland) (April 1971). https://fraser.stlouisfed.org/title/1328/item/4666, accessed on April 19, 2024.
Federal Reserve Bank of Cleveland. "April 1971," Economic Review (Federal Reserve Bank of Cleveland) (April 1971). https://fraser.stlouisfed.org/title/1328/item/4666, accessed on April 19, 2024.