United States. Department of the Treasury. "Income tax convention discussions with United Arab Republic, August 17, 1959," in United States. Department of the Treasury. "Volume 118," Press Releases of the United States Department of the Treasury (July 2, 1959 - September 29, 1959) : 159-163. https://fraser.stlouisfed.org/title/6111/item/586961/toc/537986 , accessed on June 25, 2024.