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. "February 1956," Federal Reserve Bulletin (February 1956) : 61-61. https://fraser.stlouisfed.org/title/62/item/21254/toc/340465 , accessed on March 18, 2024.