Federal Reserve Bank of Philadelphia. "May/June 1978," Business Review (Federal Reserve Bank of Philadelphia) (May/June 1978). https://fraser.stlouisfed.org/title/5580/item/557580, accessed on April 19, 2024.
Federal Reserve Bank of Philadelphia. "May/June 1978," Business Review (Federal Reserve Bank of Philadelphia) (May/June 1978). https://fraser.stlouisfed.org/title/5580/item/557580, accessed on April 19, 2024.