United States. Department of the Treasury. "Bill Tender, October 28, 1958," in United States. Department of the Treasury. "Volume 115," Press Releases of the United States Department of the Treasury (October 2, 1958 - December 31, 1958) : 116-120. https://fraser.stlouisfed.org/title/6111/item/586958/toc/537782 , accessed on June 25, 2024.