United States. Department of the Treasury. "Treasury's Weekly Bill Results, December 19, 1977, Release Number b-600," in United States. Department of the Treasury. "Volume 209," Press Releases of the United States Department of the Treasury (November 14, 1977 - January 18, 1978) : 304-305. https://fraser.stlouisfed.org/title/6111/item/587052/toc/529699 , accessed on May 20, 2024.