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. "July 1969," Federal Reserve Bulletin (July 1969) : 105-105. https://fraser.stlouisfed.org/title/62/item/21415/toc/333493 , accessed on April 19, 2024.