United States. Department of the Treasury. "Bill Tender, June 17, 1958," in United States. Department of the Treasury. "Volume 113," Press Releases of the United States Department of the Treasury (April 1, 1958 - June 26, 1958) : 295-299. https://fraser.stlouisfed.org/title/6111/item/586956/toc/537693 , accessed on June 25, 2024.