Board of Governors of the Federal Reserve System (U.S.), 1935-. "Regulation T amended on trading of stock options and Board seeks public comment on Regulation T amendment on trading of stock options" in Press Releases of the Board of Governors of the Federal Reserve System
(April 28, 1977).
https://fraser.stlouisfed.org/title/9237/item/693869, accessed on October 7, 2026.