United States. Department of the Treasury. "Issuance of General License No. 97, February 27, 1948," in United States. Department of the Treasury. "Volume 71," Press Releases of the United States Department of the Treasury (January 2, 1948 - March 31, 1948) : 410-411. https://fraser.stlouisfed.org/title/6111/item/586914/toc/569781 , accessed on May 27, 2022.