United States. Department of the Treasury. "Bill Prices, May 6, 1947," in United States. Department of the Treasury. "Volume 66," Press Releases of the United States Department of the Treasury (April 2, 1947 - May 30, 1947) : 228-230. https://fraser.stlouisfed.org/title/6111/item/586909/toc/562292 , accessed on June 25, 2024.