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 1966," Federal Reserve Bulletin (November 1966) : 87-87. https://fraser.stlouisfed.org/title/62/item/21383/toc/57828 , accessed on April 19, 2024.