MLA
Taylor, Walter Herron, 1838-1916. Letter from Colonel Walter Herron Taylor, General Robert E. Lee's adjutant, to Confederate General James Longstreet - October 27, 1864 (typescript). October 27, 1864. Civil War Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/692t4b8hw6-cor.
APA, 6th edition
Taylor, Walter Herron, 1838-1916. (October 27, 1864)[Letter from Colonel Walter Herron Taylor, General Robert E. Lee's adjutant, to Confederate General James Longstreet - October 27, 1864 (typescript)]. Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/692t4b8hw6-cor.
Chicago
Taylor, Walter Herron, 1838-1916, Letter from Colonel Walter Herron Taylor, General Robert E. Lee's adjutant, to Confederate General James Longstreet - October 27, 1864 (typescript), October 27, 1864, Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/692t4b8hw6-cor.