MLA
List of Historical Letters Pertaining to the Civil War. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 4, Folder 50. https://digital.library.emory.edu/purl/53976hds9x-cor.
APA, 6th edition
List of historical letters pertaining to the Civil War (Box 4, Folder 50). [Lists (document genre)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/53976hds9x-cor.
Chicago
“List of Historical Letters Pertaining to the Civil War.” Lists (document genre). Civil War Collection, n.d. Box 4, Folder 50. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/53976hds9x-cor.