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. "October 1966," Federal Reserve Bulletin (October 1966) : 73-73. https://fraser.stlouisfed.org/title/62/item/21382/toc/126365 , accessed on April 18, 2024.