Federal Reserve Bank of San Francisco. "June 1957," Economic Review (Federal Reserve Bank of San Francisco) (June 1957). https://fraser.stlouisfed.org/title/869/item/33672, accessed on April 26, 2024.
Federal Reserve Bank of San Francisco. "June 1957," Economic Review (Federal Reserve Bank of San Francisco) (June 1957). https://fraser.stlouisfed.org/title/869/item/33672, accessed on April 26, 2024.