Board of Governors of the Federal Reserve System (U.S.), 1935-. "Debt of federal and federally sponsored credit agencies," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1981," Annual Statistical Digest (October 1982) : 111-111. https://fraser.stlouisfed.org/title/7/item/23508/toc/396177 , accessed on March 28, 2024.