Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Industrial Production - Indexes and Gross Value," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "October 1996," Federal Reserve Bulletin (October 1996) : 146-147. https://fraser.stlouisfed.org/title/62/item/20893/toc/310515 , accessed on April 19, 2024.