United States. Department of the Treasury. "U.S. Foreign Gold Transactions for 3rd Quarter of 1969, December 3, 1969," in United States. Department of the Treasury. "Volume 167," Press Releases of the United States Department of the Treasury (November 7, 1969 - January 30, 1970) : 196-198. https://fraser.stlouisfed.org/title/6111/item/587010/toc/541599 , accessed on June 23, 2024.