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-. "March 31, 1980," H.15 Selected Interest Rates (March 31, 1980) : 1-1. https://fraser.stlouisfed.org/title/86/item/67531/toc/462986 , accessed on April 18, 2024.