Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Factory Employment and Pay Rolls, by Industries," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "December 1933," Federal Reserve Bulletin (December 1933) : 56-56. https://fraser.stlouisfed.org/title/62/item/20644/toc/37590 , accessed on March 29, 2024.