United States. Department of the Treasury. "Details of Treasury auction of $625 million of bonds, December 27, 1972," in United States. Department of the Treasury. "Volume 181," Press Releases of the United States Department of the Treasury (October 2, 1972 - December 29, 1972) : 571-572. https://fraser.stlouisfed.org/title/6111/item/587024/toc/542891 , accessed on June 25, 2024.