Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Regulatory Status of Margin Account Debt at Brokers," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "October 1970," Federal Reserve Bulletin (October 1970) : 92-92. https://fraser.stlouisfed.org/title/62/item/21430/toc/281208 , accessed on March 29, 2024.