United States. Department of the Treasury. "Antidumping Investigation Initiation on Pig Iron from Brazil, April 11, 1972," in United States. Department of the Treasury. "Volume 178," Press Releases of the United States Department of the Treasury (March 1, 1972 - April 29, 1972) : 359-360. https://fraser.stlouisfed.org/title/6111/item/587021/toc/542644 , accessed on June 25, 2024.