Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Factory Employment and Payrolls, by Industries (Without Seasonal Adjustment)," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "November 1940," Federal Reserve Bulletin (November 1940) : 61-62. https://fraser.stlouisfed.org/title/62/item/21031/toc/299214 , accessed on April 25, 2024.