Federal Reserve Bank of San Francisco. "Tracking Money," Economic Letter (Federal Reserve Bank of San Francisco) (January 31, 1975). https://fraser.stlouisfed.org/title/4960/item/527184, accessed on May 28, 2022.
Federal Reserve Bank of San Francisco. "Tracking Money," Economic Letter (Federal Reserve Bank of San Francisco) (January 31, 1975). https://fraser.stlouisfed.org/title/4960/item/527184, accessed on May 28, 2022.