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 1952," Federal Reserve Bulletin (April 1952) : 66-66. https://fraser.stlouisfed.org/title/62/item/21208/toc/397627 , accessed on May 5, 2024.