MLA
Spencer, Thomas. Tombstone of Confederate General Felix K. Zollicoffer in Nashville, Tennessee. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15, Folder 7. https://digital.library.emory.edu/purl/245q83bm5p-cor.
APA, 6th edition
Spencer, T. (1940). Tombstone of Confederate general Felix K. Zollicoffer in Nashville, Tennessee (Box 15, Folder 7) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/245q83bm5p-cor.
Chicago
Spencer, Thomas. “Tombstone of Confederate General Felix K. Zollicoffer in Nashville, Tennessee.” Black-and-white photographs. Civil War Collection, 1940. Box 15, Folder 7. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/245q83bm5p-cor.