Federal Reserve Bank of San Francisco. "September 1967," Economic Review (Federal Reserve Bank of San Francisco) (September 1967). https://fraser.stlouisfed.org/title/869/item/33438, accessed on April 26, 2024.
Federal Reserve Bank of San Francisco. "September 1967," Economic Review (Federal Reserve Bank of San Francisco) (September 1967). https://fraser.stlouisfed.org/title/869/item/33438, accessed on April 26, 2024.