United States. Department of the Treasury. "Treasury Refunds One-Year bills, August 18, 1965, Release Number f-172," 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) : 216-218. https://fraser.stlouisfed.org/title/6111/item/586993/toc/539824 , accessed on June 23, 2024.