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. "April 1980," Federal Reserve Bulletin (April 1980) : 120-120. https://fraser.stlouisfed.org/title/62/item/20464/toc/296673 , accessed on April 25, 2024.