Statement of Hon. David R. MacDonald, Assistant Secretary for Enforcement, Operations and Tariff Affairs, Department of the Treasury, before the Subcommittee on Government Information and Individual Rights of the Committee on Government Operations (re: Secret Service Protective Intelligence), March 13, 1975, Release Number ws-243
United States. Department of the Treasury. "Statement of Hon. David R. MacDonald, Assistant Secretary for Enforcement, Operations and Tariff Affairs, Department of the Treasury, before the Subcommittee on Government Information and Individual Rights of the Committee on Government Operations (re: Secret Service Protective Intelligence), March 13, 1975, Release Number ws-243," in United States. Department of the Treasury. "Volume 195," Press Releases of the United States Department of the Treasury (February 2, 1975 - March 31, 1975) : 770-782. https://fraser.stlouisfed.org/title/6111/item/587038/toc/544207 , accessed on June 25, 2024.