Board of Governors of the Federal Reserve System (U.S.), 1935-. "Trade Credit, Seasonally Adjusted Annual Rates," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "February 22, 1983," Z.1 Financial Accounts of the United States (1983-02-22) : 53-53. https://fraser.stlouisfed.org/title/93/item/69065/toc/466485 , accessed on May 5, 2024.