United States. Department of the Treasury. "Monthly Bill Offering, February 15, 1973," in United States. Department of the Treasury. "Volume 182," Press Releases of the United States Department of the Treasury (January 2, 1973 - February 28, 1973) : 415-417. https://fraser.stlouisfed.org/title/6111/item/587025/toc/542967 , accessed on June 25, 2024.