Federal Reserve Bank of Philadelphia. "August 1970," Business Review (Federal Reserve Bank of Philadelphia) (August 1970). https://fraser.stlouisfed.org/title/5580/item/557503, accessed on April 19, 2024.
Federal Reserve Bank of Philadelphia. "August 1970," Business Review (Federal Reserve Bank of Philadelphia) (August 1970). https://fraser.stlouisfed.org/title/5580/item/557503, accessed on April 19, 2024.