United States. Department of the Treasury. "Bill Offering, May 22, 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) : 236-239. https://fraser.stlouisfed.org/title/6111/item/586956/toc/537672 , accessed on June 25, 2024.