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-. "November 13, 1990," G.17 Industrial Production and Capacity Utilization (1990-11-13) : 6-7. https://fraser.stlouisfed.org/title/77/item/63584/toc/454730 , accessed on May 30, 2024.