United States. Department of the Treasury. "Letter on Co-ops to Senator Byrd and Congressman Mills, January 19, 1959," in United States. Department of the Treasury. "Volume 116," Press Releases of the United States Department of the Treasury (January 6, 1959 - March 31, 1959) : 396-400. https://fraser.stlouisfed.org/title/6111/item/586959/toc/537873 , accessed on June 25, 2024.