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. "July 1977," Federal Reserve Bulletin (July 1977) : 104-104. https://fraser.stlouisfed.org/title/62/item/20431/toc/386027 , accessed on March 28, 2024.