United States. Department of the Treasury. "Results Of Auction Of 13-Week Bills, January 7, 1991, Release Number nb-1085," in United States. Department of the Treasury. "Volume 304," Press Releases of the United States Department of the Treasury (January 2, 1991 - February 5, 1991) : 13-14. https://fraser.stlouisfed.org/title/6111/item/587147/toc/545519 , accessed on May 18, 2024.