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. "April 1963," Federal Reserve Bulletin (April 1963) : 71-71. https://fraser.stlouisfed.org/title/62/item/21340/toc/378427 , accessed on April 19, 2024.