Board of Governors of the Federal Reserve System (U.S.), 1935-. "Federal Debt Subject to Statutory Limitation," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1992," Annual Statistical Digest (December 1993) : 79-79. https://fraser.stlouisfed.org/title/7/item/23498/toc/332850 , accessed on April 23, 2024.