Federal Reserve Bank of San Francisco. "Problems Measuring Prices," Economic Letter (Federal Reserve Bank of San Francisco) (November 15, 1974). https://fraser.stlouisfed.org/title/4960/item/527173, accessed on May 21, 2022.
Federal Reserve Bank of San Francisco. "Problems Measuring Prices," Economic Letter (Federal Reserve Bank of San Francisco) (November 15, 1974). https://fraser.stlouisfed.org/title/4960/item/527173, accessed on May 21, 2022.