Federal Reserve Bank of San Francisco. "A Late Spring Freeze," Economic Letter (Federal Reserve Bank of San Francisco) (June 22, 1973). https://fraser.stlouisfed.org/title/4960/item/527100, accessed on June 26, 2024.
Federal Reserve Bank of San Francisco. "A Late Spring Freeze," Economic Letter (Federal Reserve Bank of San Francisco) (June 22, 1973). https://fraser.stlouisfed.org/title/4960/item/527100, accessed on June 26, 2024.