Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Convertible Foreign Currency Held by Federal Reserve Banks," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "November 1971," Federal Reserve Bulletin (November 1971) : 100-100. https://fraser.stlouisfed.org/title/62/item/21443/toc/148369 , accessed on May 11, 2024.