Federal Reserve Bank of San Francisco. "Staff of Life," Economic Letter (Federal Reserve Bank of San Francisco) (September 14, 1973). https://fraser.stlouisfed.org/title/4960/item/527112, accessed on July 12, 2024.
Federal Reserve Bank of San Francisco. "Staff of Life," Economic Letter (Federal Reserve Bank of San Francisco) (September 14, 1973). https://fraser.stlouisfed.org/title/4960/item/527112, accessed on July 12, 2024.