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. "August 1972," Federal Reserve Bulletin (August 1972) : 113-113. https://fraser.stlouisfed.org/title/62/item/21452/toc/431090 , accessed on March 18, 2024.