Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Industrial Production, by Industries (Adjusted Indexes)," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1936," Federal Reserve Bulletin (May 1936) : 95-95. https://fraser.stlouisfed.org/title/62/item/20730/toc/50666 , accessed on April 18, 2024.