President Johnson announces increase in interest rates on U.S. Savings Bonds and freedom shares, May 31, 1968, Release Number f-1262
United States. Department of the Treasury. "President Johnson announces increase in interest rates on U.S. Savings Bonds and freedom shares, May 31, 1968, Release Number f-1262," in United States. Department of the Treasury. "Volume 161," Press Releases of the United States Department of the Treasury (March 4, 1968 - June 3, 1968) : 671-676. https://fraser.stlouisfed.org/title/6111/item/587004/toc/541066 , accessed on June 24, 2024.