United States. Department of the Treasury. "Results of Treasury Note Auction, December 20, 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) : 562-563. https://fraser.stlouisfed.org/title/6111/item/587024/toc/542884 , accessed on June 25, 2024.