HD6501 .A55 1936d : Violations of free speech and assembly and interference with rights of labor. / Hearings before a subcommittee of the Committee on education and labor, United States Senate, Seventy-fourth Congress, second session, on S. Res. 266, a resolution to investigate violations of the right of free speech and assembly and interference with the right of labor to organize and bargain collectively.
HD6501 .A56 1951 : Communist domination of certain unions. Report of the Subcommittee on Labor and Labor-Management Relations of the Committee on Labor and Public Welfare, United States Senate, Eighty-second Congress, first[-second] session ...
HD6501 .A572 Appendix : Violations of free speech and rights of labor. Subcommittee of the Committee on education and labor, United States Senate, seventy-seventh Congress, first session, pursuant to S. Res. 266 (74th Congress ... Appendix to Senate report 151, 77th Congress, 1st session. Appendix to Senate report 6, part 3, 76th Congress, 1st session.