Federal Reserve Bank of Philadelphia. "November/December 1977," Business Review (Federal Reserve Bank of Philadelphia) (November/December 1977). https://fraser.stlouisfed.org/title/5580/item/557577, accessed on May 4, 2024.
Federal Reserve Bank of Philadelphia. "November/December 1977," Business Review (Federal Reserve Bank of Philadelphia) (November/December 1977). https://fraser.stlouisfed.org/title/5580/item/557577, accessed on May 4, 2024.