Secretary Kennedy letter to Sam J. Ervin, Jr., Chairman of the Subcommittee on Constitutional Rights (checking of library lending lists by certain representatives of Treasury Department), July 29, 1970
United States. Department of the Treasury. "Secretary Kennedy letter to Sam J. Ervin, Jr., Chairman of the Subcommittee on Constitutional Rights (checking of library lending lists by certain representatives of Treasury Department), July 29, 1970," in United States. Department of the Treasury. "Volume 169," Press Releases of the United States Department of the Treasury (May 6, 1970 - August 3, 1970) : 792-800. https://fraser.stlouisfed.org/title/6111/item/587012/toc/541864 , accessed on June 16, 2024.