Board of Governors of the Federal Reserve System (U.S.), 1935-. "Selected Interest Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "July 20, 1981," H.15 Selected Interest Rates (1981-07-20) : 1-1. https://fraser.stlouisfed.org/title/86/item/67494/toc/463100 , accessed on April 19, 2024.