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. "February 1948," Federal Reserve Bulletin (February 1948) : 58-58. https://fraser.stlouisfed.org/title/62/item/21158/toc/7731 , accessed on April 23, 2024.