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-. "1985," Annual Statistical Digest (October 1986) : 94-94. https://fraser.stlouisfed.org/title/7/item/23512/toc/158835 , accessed on March 27, 2023.