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-. "April 15, 1982," G.12.3 Industrial Production (1982-04-15) : 8-8. https://fraser.stlouisfed.org/title/55/item/59654/toc/472359 , accessed on March 29, 2024.