Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Total Nonfarm Business Expenditures on New Plant and Equipment," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "December 1986," Federal Reserve Bulletin (December 1986) : 76-76. https://fraser.stlouisfed.org/title/62/item/20775/toc/335043 , accessed on April 25, 2024.