Federal Reserve Bank of Philadelphia. "March/April 1980," Business Review (Federal Reserve Bank of Philadelphia) (March/April 1980). https://fraser.stlouisfed.org/title/5580/item/557591, accessed on April 26, 2024.
Federal Reserve Bank of Philadelphia. "March/April 1980," Business Review (Federal Reserve Bank of Philadelphia) (March/April 1980). https://fraser.stlouisfed.org/title/5580/item/557591, accessed on April 26, 2024.