"United States. Congress" . . "United States. Congress." . "U.S. Congress. Hearings." . . . . "United States." . . "United States. Congress. Senate. Library." . . "Government publications United States Bibliography." . . . "Index of congressional committee hearings (not confidential in character) prior to January 3, 1935, in the United States Senate Library"@en . . . . . . "Index of congressional committee hearings (not confidential in character) : prior to January 3, 1935, in the United States Senate Library"@en . "Index of congressional committee hearings <not confidential in character> prior to january 3, 1935 in the United States Senate Library" . . . . . "Index of congressional committee hearings (not confidential in character) prior to January 3, 1935 in the United States Senate Library"@en . "Index of congressional committee hearings (not confidential in character) prior to January 3, 1935 in the United States Senate Library" . . . . . "Index of congressional committee hearings, (not confidential in character), prior to January 3, 1935 in the United States Senate Library" . . . . "Index of congressional committee hearings (not confidential in character) prior to january 3, 1935 in the United States Senate Library" . . . . . . . . . . . "Bibliography"@en . "Bibliography" . . . . "Index of congressional committee hearings (not confidential in character) prior to January 3, 1935 : in the United States Senate Library"@en . . . . . . . "Index of Congressional committee hearings (not confidential in character) prior to January 3, 1935 in the United States Senate Library"@en . . . "Indexes"@en . "Index of congressional committee hearings (not confidential in character) prior to January 3, 1935 : in the United States Senate library"@en . . . . "Government publications." . .