Board of Governors of the Federal Reserve System (U.S.), 1935-. "Detailed Debit and Credit Balances at Brokers Carrying Margin Accounts," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1984," Annual Statistical Digest (October 1985) : 233-233. https://fraser.stlouisfed.org/title/7/item/23511/toc/37450 , accessed on March 28, 2023.