Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Industrial Production and Capacity Utilization," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "January 1991," Federal Reserve Bulletin (January 1991) : 26-28. https://fraser.stlouisfed.org/title/62/item/20824/toc/264929 , accessed on April 26, 2024.