Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "National Summary of Business Conditions," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "November 1939," Federal Reserve Bulletin (November 1939) : 11-12. https://fraser.stlouisfed.org/title/62/item/21019/toc/147586 , accessed on May 10, 2024.