United States. Department of the Treasury. "Treasury's 52-Week Bill Offering, August 16, 1991, Release Number nb-1421," in United States. Department of the Treasury. "Volume 309," Press Releases of the United States Department of the Treasury (July 22, 1991 - September 10, 1991) : 314-317. https://fraser.stlouisfed.org/title/6111/item/587152/toc/546145 , accessed on May 18, 2024.