Progressive Labor Party : hearings before the Committee on Internal Security, House of Representatives, Ninety-second Congress, first session, April 13, 14, and November 18, 1971 (including index).

Corporate Author:: United States. Congress. House. Committee on Internal Security
Published:: Washington : U.S. Government Printing Office, 1972.
Washington, D.C. : For sale by the Superintendent of Documents, U.S. Government Printing Office
[Getzville, New York] : William S. Hein & Company, [2017]
Physical Description:: 1 online resource (v, 4,043-4,447, xix pages) : illustrations