Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Industrial Production, by Industries (Adjusted for Seasonal Variation)," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "December 1949," Federal Reserve Bulletin (December 1949) : 59-60. https://fraser.stlouisfed.org/title/62/item/21180/toc/259733 , accessed on April 19, 2024.