United States. Department of the Treasury. "Treasury's Weekly Bill Results, April 7, 1979, Release Number b-1531," in United States. Department of the Treasury. "Volume 220," Press Releases of the United States Department of the Treasury (March 20, 1979 - April 30, 1979) : 570-571. https://fraser.stlouisfed.org/title/6111/item/587063/toc/530635 , accessed on May 19, 2024.