MLA
Benjamin, J. P. (Judah Philip), 1811-1884. Letter from Judah Phillip Benjamin (Richmond, Virginia) to Mrs. John M. Speed (Lynchburg, Virginia) - January 23, 1863. January 23, 1863. Civil War Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/238w9ghz3j-cor.
APA, 6th edition
Benjamin, J. P. (Judah Philip), 1811-1884. (January 23, 1863)[Letter from Judah Phillip Benjamin (Richmond, Virginia) to Mrs. John M. Speed (Lynchburg, Virginia) - January 23, 1863]. Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/238w9ghz3j-cor.
Chicago
Benjamin, J. P. (Judah Philip), 1811-1884, Letter from Judah Phillip Benjamin (Richmond, Virginia) to Mrs. John M. Speed (Lynchburg, Virginia) - January 23, 1863, January 23, 1863, Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/238w9ghz3j-cor.