MLA
McCord, James A. Letter from James A. McCord (Franklin, Tennessee) to His Brother John William McCord (Jackson, Georgia). Both Brothers Were Members of the 30th Georgia Infantry Regiment. James Discusses the Battle of Franklin to His Brother - December 3, 1864. 1864. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5, Folder 2. https://digital.library.emory.edu/purl/706g1jwtw4-cor.
APA, 6th edition
McCord, J. A. (1864). Letter from James A. McCord (Franklin, Tennessee) to his brother John William McCord (Jackson, Georgia). Both brothers were members of the 30th Georgia Infantry Regiment. James discusses the Battle of Franklin to his brother - December 3, 1864 (Box 5, Folder 2) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwtw4-cor.
Chicago
McCord, James A. “Letter from James A. McCord (Franklin, Tennessee) to His Brother John William McCord (Jackson, Georgia). Both Brothers Were Members of the 30th Georgia Infantry Regiment. James Discusses the Battle of Franklin to His Brother - December 3, 1864.” Letters (correspondence). Civil War Collection, 1864. Box 5, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwtw4-cor.