United States. Department of the Treasury. "Bill Tender, May 20, 1952," in United States. Department of the Treasury. "Volume 92," Press Releases of the United States Department of the Treasury (April 1, 1952 - May 28, 1952) : 605-609. https://fraser.stlouisfed.org/title/6111/item/586935/toc/563660 , accessed on June 25, 2024.