Federal Reserve Bank of Philadelphia. "May/June 1980," Business Review (Federal Reserve Bank of Philadelphia) (May/June 1980). https://fraser.stlouisfed.org/title/5580/item/557592, accessed on May 11, 2024.
Federal Reserve Bank of Philadelphia. "May/June 1980," Business Review (Federal Reserve Bank of Philadelphia) (May/June 1980). https://fraser.stlouisfed.org/title/5580/item/557592, accessed on May 11, 2024.