Hearings on H.R. 12047, H.R. 14925, H.R. 16175, H.R. 17140, and H.R. 17194, bills to make punishable assistance to enemies of U.S. in time of undeclared war. Investigative [and legislative] hearings, Eighty-ninth Congress, second session
United States. Congress. House. Committee on Un-American Activities