Board of Governors of the Federal Reserve System (U.S.), 1935-. "Nonfarm Business Expenditures on New Plant and Equipment," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1993," Annual Statistical Digest (November 1994) : 135-135. https://fraser.stlouisfed.org/title/7/item/23499/toc/428204 , accessed on April 26, 2024.