Board of Governors of the Federal Reserve System (U.S.), 1935-. "Footnotes," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "April 30, 1990," H.15 Selected Interest Rates (1990-04-30) : 2-2. https://fraser.stlouisfed.org/title/86/item/67159/toc/462877 , accessed on April 24, 2024.