United States. Department of the Treasury. "Halperin Before The Senate Finance Committee, August 28, 1978," in United States. Department of the Treasury. "Volume 216," Press Releases of the United States Department of the Treasury (August 1, 1978 - September 15, 1978) : 393-414. https://fraser.stlouisfed.org/title/6111/item/587059/toc/530239 , accessed on June 8, 2023.
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