Results of Treasury's cash offering of 5-5/8% notes, February 15, 1968, Release Number f-1168
United States. Department of the Treasury. "Results of Treasury's cash offering of 5-5/8% notes, February 15, 1968, Release Number f-1168," in United States. Department of the Treasury. "Volume 160," Press Releases of the United States Department of the Treasury (December 1, 1967 - February 29, 1968) : 769-770. https://fraser.stlouisfed.org/title/6111/item/587003/toc/540972 , accessed on July 9, 2024.