Board of Governors of the Federal Reserve System (U.S.), 1935-. "Electric Power Use: Manufacturing and Mining," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "February 15, 1994," G.17 Industrial Production and Capacity Utilization (1994-02-15) : 16-17. https://fraser.stlouisfed.org/title/77/item/63624/toc/455461 , accessed on May 5, 2024.