United States. Department of the Treasury. "Results Of Auction Of 26-Week Bills, October 7, 1991, Release Number nb-1490," in United States. Department of the Treasury. "Volume 310," Press Releases of the United States Department of the Treasury (September 11, 1991 - October 15, 1991) : 410-411. https://fraser.stlouisfed.org/title/6111/item/587153/toc/546230 , accessed on May 24, 2024.