Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Monthly Seasonal Factors Used to Construct M1," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1999," Federal Reserve Bulletin (April 1999) : 46-46. https://fraser.stlouisfed.org/title/62/item/20923/toc/65592 , accessed on May 10, 2024.