Board of Governors of the Federal Reserve System (U.S.), 1935-. "Current Assets and Liabilities of Nonfinancial Corporations," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1970-1979," Annual Statistical Digest (March 1981) : 268-269. https://fraser.stlouisfed.org/title/7/item/23506/toc/190719 , accessed on April 18, 2024.