Revision history of "Data excerpts from United States Congress, Senate Executive Document, Session 26-2, Vols. 115, 125; 28-2, 150; 30-1, 28; 30-2, 61; 31-2, 6; 150; 34-1, 99; 35-1, 49; 37-2, 40; 37-2, 53." (Q9928)

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