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-. "July 15, 1994," G.17 Industrial Production and Capacity Utilization (1994-07-15) : 6-7. https://fraser.stlouisfed.org/title/77/item/63629/toc/455514 , accessed on June 1, 2024.