Board of Governors of the Federal Reserve System (U.S.), 1935-. "Industry Subtotals and Individual Series, Not Seasonally Adjusted," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "October 14, 1977," G.12.3 Industrial Production (1977-10-14) : 11-11. https://fraser.stlouisfed.org/title/55/item/59788/toc/470252 , accessed on March 28, 2024.