United States. Congress.. The Congressional Globe: Containing the Debates and Proceedings of the Second Session of the Fortieth Congress; Together With an Appendix, Comprising the Laws Passed at that Session; and a Supplement, Embracing the Proceedings in the Trial of Andrew Johnson. Washington D.C.. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc30875/. Accessed May 21, 2013.
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