Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Estimated Foreign Holdings of Marketable U.S. Treasury Bonds and Notes," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "July 1973," Federal Reserve Bulletin (July 1973) : 154-154. https://fraser.stlouisfed.org/title/62/item/21463/toc/315495 , accessed on May 7, 2024.