Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Kinds of Money in Circulation," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "August 1937," Federal Reserve Bulletin (August 1937) : 39-39. https://fraser.stlouisfed.org/title/62/item/20745/toc/354136 , accessed on March 28, 2024.