United States. Department of the Treasury. "U.S. and Turkey to discuss income tax treasury, June 23, 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) : 245-246. https://fraser.stlouisfed.org/title/6111/item/587008/toc/541472 , accessed on June 22, 2024.