Federal Reserve Bank of San Francisco. "Phase 3 1/2," Economic Letter (Federal Reserve Bank of San Francisco) (May 11, 1973). https://fraser.stlouisfed.org/title/4960/item/527094, accessed on June 25, 2024.
Federal Reserve Bank of San Francisco. "Phase 3 1/2," Economic Letter (Federal Reserve Bank of San Francisco) (May 11, 1973). https://fraser.stlouisfed.org/title/4960/item/527094, accessed on June 25, 2024.