United States. Department of the Treasury. "Treasury's Weekly Bill Offering, September 20, 1988, Release Number nb-7," in United States. Department of the Treasury. "Volume 287," Press Releases of the United States Department of the Treasury (September 16, 1988 - December 29, 1988) : 19-22. https://fraser.stlouisfed.org/title/6111/item/587130/toc/535477 , accessed on May 17, 2024.