MLA
Gholston, D. D. Letter from D. D. Gholston (Camp near Shelbyville, Tennessee) to "Mrs. Dudley" - February 2, 1863. 1863. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 3, Folder 36. https://digital.library.emory.edu/purl/180vq83chj-cor.
APA, 6th edition
Gholston, D. D. (1863). Letter from D. D. Gholston (camp near Shelbyville, Tennessee) to "Mrs. Dudley" - February 2, 1863 (Box 3, Folder 36) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/180vq83chj-cor.
Chicago
Gholston, D. D. “Letter from D. D. Gholston (Camp near Shelbyville, Tennessee) to ‘Mrs. Dudley’ - February 2, 1863.” Letters (correspondence). Civil War Collection, 1863. Box 3, Folder 36. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/180vq83chj-cor.