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. "January 1990," Federal Reserve Bulletin (January 1990) : 76-76. https://fraser.stlouisfed.org/title/62/item/20812/toc/357510 , accessed on June 27, 2024.