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-. "March 16, 1989," G.12.3 Industrial Production (1989-03-16) : 13-13. https://fraser.stlouisfed.org/title/55/item/59746/toc/474512 , accessed on May 7, 2024.