MLA
Domingos, Isaac. Letter from Isaac Domingos (Camp Two Miles from Gordonsville, Virginia) to His Son Joseph and His Daughter Tallulah. Domingos Served in the 51st Georgia Infantry Regiment - April 19, 1864 (Photocopy). 1864. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 3, Folder 5. https://digital.library.emory.edu/purl/904dncjv14-cor.
APA, 6th edition
Domingos, I. (1864). Letter from Isaac Domingos (Camp two miles from Gordonsville, Virginia) to his son Joseph and his daughter Tallulah. Domingos served in the 51st Georgia Infantry Regiment - April 19, 1864 (photocopy) (Box 3, Folder 5) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/904dncjv14-cor.
Chicago
Domingos, Isaac. “Letter from Isaac Domingos (Camp Two Miles from Gordonsville, Virginia) to His Son Joseph and His Daughter Tallulah. Domingos Served in the 51st Georgia Infantry Regiment - April 19, 1864 (Photocopy).” Letters (correspondence). Civil War Collection, 1864. Box 3, Folder 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/904dncjv14-cor.