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. "May 1950," Federal Reserve Bulletin (May 1950) : 27-27. https://fraser.stlouisfed.org/title/62/item/21185/toc/299397 , accessed on May 9, 2024.