Board of Governors of the Federal Reserve System (U.S.), 1935-. "Reinstatement of rule that limits the use of same-day substitution privilege in stock margin accounts (Regulations G, T, and U)" in Press Releases of the Board of Governors of the Federal Reserve System
(September 16, 1975).
https://fraser.stlouisfed.org/title/9237/item/700221, accessed on July 20, 2026.