MLA
Spencer, Thomas. Former Confederate Hospital at The Rock, Georgia. 1961. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15, Folder 2. https://digital.library.emory.edu/purl/037hqbzmmv-cor.
APA, 6th edition
Spencer, T. (1961). Former Confederate hospital at The Rock, Georgia (Box 15, Folder 2) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/037hqbzmmv-cor.
Chicago
Spencer, Thomas. “Former Confederate Hospital at The Rock, Georgia.” Black-and-white photographs. Civil War Collection, 1961. Box 15, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/037hqbzmmv-cor.