Board of Governors of the Federal Reserve System (U.S.), 1935-. "May 4, 1967," G.14 U.S. Government Security Yields and Prices (1967-05-04). https://fraser.stlouisfed.org/title/1259/item/48890, accessed on May 10, 2024.
Board of Governors of the Federal Reserve System (U.S.), 1935-. "May 4, 1967," G.14 U.S. Government Security Yields and Prices (1967-05-04). https://fraser.stlouisfed.org/title/1259/item/48890, accessed on May 10, 2024.