Board of Governors of the Federal Reserve System (U.S.), 1935-. "February 20, 1952," G.27 Commercial and Industrial Loans to U.S. Addresses, Excluding Bankers' Acceptances and Commercial Paper, by Industry (February 20, 1952). https://fraser.stlouisfed.org/scribd/?item_id=481272&filepath=/files/docs/releases/g27/h12_19520220.pdf, accessed on December 18, 2017.
Board of Governors of the Federal Reserve System