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. "September 1990," Federal Reserve Bulletin (September 1990) : 163-163. https://fraser.stlouisfed.org/title/62/item/20820/toc/212349 , accessed on May 7, 2024.