MLA
Miles, L. H. Letter from L. H. Miles (Tullahoma, Tennessee) to His Sister, Elizabeth Fuller, Wife of J. V. Fuller - January 11, 1863. 1863. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 3, Folder 29. https://digital.library.emory.edu/purl/989r2281h2-cor.
APA, 6th edition
Miles, L. H. (1863). Letter from L. H. Miles (Tullahoma, Tennessee) to his sister, Elizabeth Fuller, wife of J. V. Fuller - January 11, 1863 (Box 3, Folder 29) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/989r2281h2-cor.
Chicago
Miles, L. H. “Letter from L. H. Miles (Tullahoma, Tennessee) to His Sister, Elizabeth Fuller, Wife of J. V. Fuller - January 11, 1863.” Letters (correspondence). Civil War Collection, 1863. Box 3, Folder 29. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/989r2281h2-cor.