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-. "June 1, 1981," H.15 Selected Interest Rates (1981-06-01) : 1-1. https://fraser.stlouisfed.org/title/86/item/67045/toc/463093 , accessed on April 25, 2024.