United States. Department of the Treasury. "Advance Refunding offer with 2 attachments, September 9, 1960," in United States. Department of the Treasury. "Volume 122," Press Releases of the United States Department of the Treasury (July 5, 1960 - September 30, 1960) : 251-284. https://fraser.stlouisfed.org/title/6111/item/586965/toc/538284 , accessed on June 24, 2024.