United States. Department of the Treasury. "K. Martin Worthy sworn in as Chief Counsel for IRS, June 25, 1969," in United States. Department of the Treasury. "Volume 165," Press Releases of the United States Department of the Treasury (May 6, 1969 - August 29, 1969) : 244-245. https://fraser.stlouisfed.org/title/6111/item/587008/toc/541471 , accessed on June 22, 2024.