Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industrial Production: Industry Groups," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "December 14, 1994," G.17 Industrial Production and Capacity Utilization (1994-12-14) : 6-7. https://fraser.stlouisfed.org/title/77/item/63635/toc/455593 , accessed on March 29, 2024.