Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Observed Values, Fitted Values, and Deviations of Ratios," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "February 1974," Federal Reserve Bulletin (February 1974) : 23-23. https://fraser.stlouisfed.org/title/62/item/21470/toc/371507 , accessed on April 18, 2024.