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 30, 1980," H.15 Selected Interest Rates (June 30, 1980) : 1-1. https://fraser.stlouisfed.org/title/86/item/67331/toc/463007 , accessed on April 24, 2024.