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 1949," Federal Reserve Bulletin (March 1949) : 39-39. https://fraser.stlouisfed.org/title/62/item/21171/toc/315902 , accessed on May 9, 2024.