Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Kinds Outstanding and in Circulation," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1966," Federal Reserve Bulletin (May 1966) : 44-44. https://fraser.stlouisfed.org/title/62/item/21377/toc/139157 , accessed on May 9, 2024.