Board of Governors of the Federal Reserve System (U.S.), 1935-. "May 15, 1968," L.5.7 Selected Deposit Data, All Member Banks, Weekly Reporting Banks, and 15 Largest Weekly Reporting Banks (May 15, 1968). https://fraser.stlouisfed.org/title/5173/item/521501, accessed on December 4, 2023.
http://rightsstatements.org/vocab/NoC-US/1.0/