United States. Department of the Treasury. "Coinage Commission acts on Eisenhower Dollar, May 13, 1970," in United States. Department of the Treasury. "Volume 169," Press Releases of the United States Department of the Treasury (May 6, 1970 - August 3, 1970) : 147-150. https://fraser.stlouisfed.org/title/6111/item/587012/toc/541775 , accessed on June 16, 2024.