Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Marketable U.S. Treasury Bonds and Notes - Foreign Holdings and Transactions," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1981," Federal Reserve Bulletin (April 1981) : 184-184. https://fraser.stlouisfed.org/title/62/item/20476/toc/385482 , accessed on April 26, 2024.