Board of Governors of the Federal Reserve System (U.S.), 1935-. "Nonfinancial Corporate Business, Excluding Farms, Annual Flows, Annual," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "June 11, 1992," Z.1 Financial Accounts of the United States (1992-06-11) : 21-21. https://fraser.stlouisfed.org/title/93/item/69076/toc/475506 , accessed on March 28, 2024.