Federal Reserve Bank of San Francisco. "May 1967," Economic Review (Federal Reserve Bank of San Francisco) (May 1967). https://fraser.stlouisfed.org/title/869/item/33436, accessed on May 2, 2024.
Federal Reserve Bank of San Francisco. "May 1967," Economic Review (Federal Reserve Bank of San Francisco) (May 1967). https://fraser.stlouisfed.org/title/869/item/33436, accessed on May 2, 2024.