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. "November 1961," Federal Reserve Bulletin (November 1961) : 60-60. https://fraser.stlouisfed.org/title/62/item/21323/toc/151959 , accessed on May 3, 2024.