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. "October 1938," Federal Reserve Bulletin (October 1938) : 93-94. https://fraser.stlouisfed.org/title/62/item/21006/toc/301703 , accessed on April 19, 2024.