Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Movement of Crude Petroleum (East of Rocky Mountains)," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "March 1919," Federal Reserve Bulletin (March 1919) : 86-86. https://fraser.stlouisfed.org/title/62/item/20587/toc/96528 , accessed on June 24, 2024.