Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Foreign Exchange Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1989," Federal Reserve Bulletin (May 1989) : 173-173. https://fraser.stlouisfed.org/title/62/item/20804/toc/123667 , accessed on March 29, 2024.