Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "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 1979," Federal Reserve Bulletin (December 1979) : 118-118. https://fraser.stlouisfed.org/title/62/item/20460/toc/129776 , accessed on April 23, 2024.