*''Investigation of Un-American Propaganda Activities in the United States,'' hearings of 6 February 1947, U.S. Congress, House of Representatives, Committee on Un-American Activities, 80th Cong., 1st sess., 14–19. | *''Investigation of Un-American Propaganda Activities in the United States,'' hearings of 6 February 1947, U.S. Congress, House of Representatives, Committee on Un-American Activities, 80th Cong., 1st sess., 14–19. |