Subversive influence in the United Electrical, Radio, and Machine Workers of America, Pittsburgh and Erie, Pa. (Investigation relative to legislation designed to curb Communist penetration and domination of labor organizations). Hearings before the Subcommittee to Investigate the Administration of the Internal Security Act and Other Internal Security Laws of the Committee on the Judiciary, United States Senate, Eighty-third Congress, first session, on subversive influence in the United Electrical, Radio, and Machine Workers of America, Pittsburgh and Erie, Pa., November 9, 10, and 12, 1953.