Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Industrial Production, Capacity, and Capacity Utilization Since 1987," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "June 1993," Federal Reserve Bulletin (June 1993) : 25-40. https://fraser.stlouisfed.org/title/62/item/20853/toc/250637 , accessed on March 29, 2024.