Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Group Index Numbers - Christiania, Norway - Okonomisk Revue," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "August 1921," Federal Reserve Bulletin (August 1921) : 101-101. https://fraser.stlouisfed.org/title/62/item/20526/toc/100381 , accessed on May 9, 2024.