Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industrial Production: Industry Subtotals and Individual Series," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "March 14, 1997," G.17 Industrial Production and Capacity Utilization (1997-03-14) : 12-15. https://fraser.stlouisfed.org/title/77/item/63664/toc/455845 , accessed on June 14, 2024.