Federal Reserve Bank of Philadelphia. "September/October 1977," Business Review (Federal Reserve Bank of Philadelphia) (September/October 1977). https://fraser.stlouisfed.org/title/5580/item/557576, accessed on April 19, 2024.
Federal Reserve Bank of Philadelphia. "September/October 1977," Business Review (Federal Reserve Bank of Philadelphia) (September/October 1977). https://fraser.stlouisfed.org/title/5580/item/557576, accessed on April 19, 2024.