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 1963," Federal Reserve Bulletin (December 1963) : 73-73. https://fraser.stlouisfed.org/title/62/item/21348/toc/428390 , accessed on April 19, 2024.