Investigation of improper activities in labor or management field, index to hearings, 85th Congress, 1st and 2d sessions, and 86th Congress, 1st session, pursuant to Senate resolutions 74 and 221, 85th Congress and Senate resolution 44, 86th Congress. pt. 2. [Composite index to hearings for 1957, 1958, and 1958: sec. 2, Subject index.]

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