Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Wholesale Prices: Detail," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 1968," Federal Reserve Bulletin (February 1968) : 207-207. https://fraser.stlouisfed.org/title/62/item/21398/toc/270998 , accessed on April 25, 2024.