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 1973," Federal Reserve Bulletin (April 1973) : 124-124. https://fraser.stlouisfed.org/title/62/item/21460/toc/123157 , accessed on March 18, 2024.