United States. Department of the Treasury. "Bill tender on 365-day T. Bills, September 25, 1965, Release Number f-211," in United States. Department of the Treasury. "Volume 150," Press Releases of the United States Department of the Treasury (August 3, 1965 - September 29, 1965) : 648-649. https://fraser.stlouisfed.org/title/6111/item/586993/toc/539863 , accessed on June 23, 2024.