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. "February 1951," Federal Reserve Bulletin (February 1951) : 47-47. https://fraser.stlouisfed.org/title/62/item/21194/toc/60753 , accessed on May 7, 2024.