United States. Department of the Treasury. "Bill Offering, June 28, 1955," in United States. Department of the Treasury. "Volume 103," Press Releases of the United States Department of the Treasury (April 5, 1955 - July 28, 1955) : 385-389. https://fraser.stlouisfed.org/title/6111/item/586946/toc/536941 , accessed on April 25, 2024.