Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Margin Requirements," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "June 1970," Federal Reserve Bulletin (June 1970) : 82-82. https://fraser.stlouisfed.org/title/62/item/21426/toc/347507 , accessed on April 18, 2024.