Board of Governors of the Federal Reserve System (U.S.), 1935-. "Footnotes," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "March 25, 1991," H.15 Selected Interest Rates (1991-03-25) : 2-2. https://fraser.stlouisfed.org/title/86/item/67820/toc/464190 , accessed on May 21, 2024.