Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Bond and Stock Yields," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "June 1970," Federal Reserve Bulletin (June 1970) : 106-106. https://fraser.stlouisfed.org/title/62/item/21426/toc/347527 , accessed on May 4, 2024.