MLA
Spencer, Thomas. Civil War-Era Cannon in Columbus, Georgia. 1956. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15, Folder 2. https://digital.library.emory.edu/purl/013mw6mb4p-cor.
APA, 6th edition
Spencer, T. (1956). Civil War-era Cannon in Columbus, Georgia (Box 15, Folder 2) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/013mw6mb4p-cor.
Chicago
Spencer, Thomas. “Civil War-Era Cannon in Columbus, Georgia.” Black-and-white photographs. Civil War Collection, 1956. Box 15, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/013mw6mb4p-cor.