Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Business Indexes," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1949," Federal Reserve Bulletin (May 1949) : 95-95. https://fraser.stlouisfed.org/title/62/item/21173/toc/418666 , accessed on May 5, 2024.