Local 706, Plumbers & Steamfitters Union, El Dorado, Ark., hearings before permanent subcommittee on investigations of Committee on Government Operations and Select Committee on Improper Activities in Labor or Management Field, Senate, 86th Congress, 2d session, pursuant to Senate resolution 249 and sec. 5 of Senate resolution 255, 86th Congress, Mar. 22-Aug. 17, 1960.

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