United States. Department of the Treasury. "John C. Richardson resigns as Tax Legislative Counsel, January 31, 1973," in United States. Department of the Treasury. "Volume 182," Press Releases of the United States Department of the Treasury (January 2, 1973 - February 28, 1973) : 300-302. https://fraser.stlouisfed.org/title/6111/item/587025/toc/542939 , accessed on June 25, 2024.