Board of Governors of the Federal Reserve System (U.S.), 1935-. "Securities Credit Reported, by Nonbank Lenders Subject to Margin Regulations," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1980-1989," Annual Statistical Digest (March 1991) : 683-683. https://fraser.stlouisfed.org/title/7/item/23495/toc/414341 , accessed on March 28, 2024.