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. "November 1957," Federal Reserve Bulletin (November 1957) : 18-18. https://fraser.stlouisfed.org/title/62/item/21275/toc/44968 , accessed on March 29, 2024.