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-. "June 12, 1991," Z.1 Financial Accounts of the United States (1991-06-12) : 66-66. https://fraser.stlouisfed.org/title/93/item/69043/toc/468285 , accessed on May 3, 2024.