Federal Reserve Bank of San Francisco. "Raising Ceilings," Economic Letter (Federal Reserve Bank of San Francisco) (July 13, 1973). https://fraser.stlouisfed.org/title/4960/item/527103, accessed on May 17, 2022.
Federal Reserve Bank of San Francisco. "Raising Ceilings," Economic Letter (Federal Reserve Bank of San Francisco) (July 13, 1973). https://fraser.stlouisfed.org/title/4960/item/527103, accessed on May 17, 2022.