Board of Governors of the Federal Reserve System (U.S.), 1935-. "March 31, 1971," G.27 Commercial and Industrial Loans to U.S. Addresses, Excluding Bankers' Acceptances and Commercial Paper, by Industry (March 31, 1971). https://fraser.stlouisfed.org/title/3933/item/482271, accessed on December 17, 2018.
Board of Governors of the Federal Reserve System