Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Security Credit Reported, by Lenders Subject to Margin Regulations," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 1972," Federal Reserve Bulletin (February 1972) : 209-209. https://fraser.stlouisfed.org/title/62/item/21446/toc/76686 , accessed on April 19, 2024.