Federal Reserve Bank of Philadelphia. "November 1961," Business Review (Federal Reserve Bank of Philadelphia) (November 1961). https://fraser.stlouisfed.org/title/5580/item/557397, accessed on April 19, 2024.
Federal Reserve Bank of Philadelphia. "November 1961," Business Review (Federal Reserve Bank of Philadelphia) (November 1961). https://fraser.stlouisfed.org/title/5580/item/557397, accessed on April 19, 2024.