United States. Department of the Treasury. "Monthly bill results on 273-day bills and 365-day bills, December 23, 1970," in United States. Department of the Treasury. "Volume 171," Press Releases of the United States Department of the Treasury (November 2, 1970 - January 29, 1971) : 273-274. https://fraser.stlouisfed.org/title/6111/item/587014/toc/542056 , accessed on May 4, 2024.