MLA
Sartain, William. The Council of War. Union General Ulysses S. Grant Seated with Union General William T. Sherman Outside of Tent. Stuart A. Rose Manuscript, Archives, and Rare Book Library, OP9, Folder 11. https://digital.library.emory.edu/purl/972p5hqd65-cor.
APA, 6th edition
Sartain, W. The Council of War. Union General Ulysses S. Grant seated with Union General William T. Sherman outside of tent (OP9, Folder 11) [Engravings (prints)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/972p5hqd65-cor.
Chicago
Sartain, William. “The Council of War. Union General Ulysses S. Grant Seated with Union General William T. Sherman Outside of Tent.” Engravings (prints). Civil War Collection, n.d. OP9, Folder 11. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/972p5hqd65-cor.