United States. Department of the Treasury. "Bill Tender, January 24, 1966, Release Number f-350," in United States. Department of the Treasury. "Volume 152," Press Releases of the United States Department of the Treasury (December 1, 1965 - January 31, 1966) : 590-609. https://fraser.stlouisfed.org/title/6111/item/586995/toc/539929 , accessed on June 22, 2024.