Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Industrial Production, by Industries (Unadjusted Indexes)," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "March 1935," Federal Reserve Bulletin (March 1935) : 61-61. https://fraser.stlouisfed.org/title/62/item/20616/toc/187009 , accessed on April 19, 2024.