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. "1948," Annual Report of the Board of Governors of the Federal Reserve System (1948) : 82-82. https://fraser.stlouisfed.org/title/117/item/2405/toc/88387 , accessed on May 10, 2024.