MLA
Tintype of Michael Marshall, United States Army Army Solder in the 17th Infantry Regiment, Company A, Who Died at the Battle of Globe Tavern in 1864. 1861. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 23, Folder 20. https://digital.library.emory.edu/purl/0752fqz79h-cor.
APA, 6th edition
Tintype of Michael Marshall, United States Army army solder in the 17th Infantry Regiment, Company A, who died at the Battle of Globe Tavern in 1864 (Box 23, Folder 20). (1861). [Tintypes (prints)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0752fqz79h-cor.
Chicago
“Tintype of Michael Marshall, United States Army Army Solder in the 17th Infantry Regiment, Company A, Who Died at the Battle of Globe Tavern in 1864.” Tintypes (prints). Civil War Collection, 1861. Box 23, Folder 20. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0752fqz79h-cor.