United States. Department of the Treasury. "Treasury's Weekly Bill Offering, October 22, 1991, Release Number nb-1510," in United States. Department of the Treasury. "Volume 311," Press Releases of the United States Department of the Treasury (October 16, 1991 - November 18, 1991) : 42-45. https://fraser.stlouisfed.org/title/6111/item/587154/toc/546257 , accessed on May 18, 2024.