Bopp, Karl R. (Karl Richard), 1906-1979 and Federal Reserve Bank of Philadelphia "Field Meeting held at Cherry Hill Inn, Haddonfield, N.J.." Notes, April 7, 1959, https://fraser.stlouisfed.org/title/1013/item/1011, accessed on April 19, 2024.
Bopp, Karl R. (Karl Richard), 1906-1979 and Federal Reserve Bank of Philadelphia "Field Meeting held at Cherry Hill Inn, Haddonfield, N.J.." Notes, April 7, 1959, https://fraser.stlouisfed.org/title/1013/item/1011, accessed on April 19, 2024.