Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industry Subtotals and Individual Series, Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "July 16, 1976," G.12.3 Industrial Production (1976-07-16) : 6-8. https://fraser.stlouisfed.org/title/55/item/59527/toc/451786 , accessed on April 19, 2024.