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-. "June 13, 1980," G.12.3 Industrial Production (1980-06-13) : 12-12. https://fraser.stlouisfed.org/title/55/item/59632/toc/471994 , accessed on May 2, 2024.