Federal Reserve Bank of San Francisco. "Send Them a Message!," Economic Letter (Federal Reserve Bank of San Francisco) (June 9, 1978). https://fraser.stlouisfed.org/title/4960/item/527285, accessed on May 25, 2022.
Federal Reserve Bank of San Francisco. "Send Them a Message!," Economic Letter (Federal Reserve Bank of San Francisco) (June 9, 1978). https://fraser.stlouisfed.org/title/4960/item/527285, accessed on May 25, 2022.