MLA
Woodruff, J. S. Letter from J. S. Woodruff (Reidsville, North Carolina) to "My Dear Fannie" Regarding His Physical Ailments and Information about the Family - August 15, 1879 (Typescript). 1879. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 9, Folder 49. https://digital.library.emory.edu/purl/969866t2mn-cor.
APA, 6th edition
Woodruff, J. S. (1879). Letter from J. S. Woodruff (Reidsville, North Carolina) to "My Dear Fannie" regarding his physical ailments and information about the family - August 15, 1879 (typescript) (Box 9, Folder 49) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/969866t2mn-cor.
Chicago
Woodruff, J. S. “Letter from J. S. Woodruff (Reidsville, North Carolina) to ‘My Dear Fannie’ Regarding His Physical Ailments and Information about the Family - August 15, 1879 (Typescript).” Letters (correspondence). Civil War Collection, 1879. Box 9, Folder 49. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/969866t2mn-cor.