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. "March 1956," Federal Reserve Bulletin (March 1956) : 24-24. https://fraser.stlouisfed.org/title/62/item/21255/toc/367570 , accessed on April 26, 2024.