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. "September 1951," Federal Reserve Bulletin (September 1951) : 92-92. https://fraser.stlouisfed.org/title/62/item/21201/toc/145924 , accessed on May 9, 2024.