MLA
McLaws, Lafayette, 1821-1897. Letter from Lafayette McLaws (Savannah, Georgia) to James Longstreet - April 26, 1888 (typescript). April 26, 1888. Civil War Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/013mw6mb1v-cor.
APA, 6th edition
McLaws, Lafayette, 1821-1897. (April 26, 1888)[Letter from Lafayette McLaws (Savannah, Georgia) to James Longstreet - April 26, 1888 (typescript)]. Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/013mw6mb1v-cor.
Chicago
McLaws, Lafayette, 1821-1897, Letter from Lafayette McLaws (Savannah, Georgia) to James Longstreet - April 26, 1888 (typescript), April 26, 1888, Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/013mw6mb1v-cor.