Buhler, Curt F., chairman. The Papers of the Bibliographical Society of America. Volume Fifty-Two, Third Quarter, 1958.
Cockburn, Sir Alexander; 12th Baronet of Langton (1802-1880). Lord Chief Justice of the Queen's Bench. Autograph Close of a Letter Signed by the Lord Chief Justice of the Queen's Bench Sir Alexander Cockburn, 12th Baronet of Langton.
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