MLA
Spencer, Thomas. Marietta Railroad Depot in Marietta, Georgia. The Depot Was Built in 1864, Destroyed by the Union Troops Later That Year and Was Rebuilt in 1898. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 14, Folder 10. https://digital.library.emory.edu/purl/829b5mkn08-cor.
APA, 6th edition
Spencer, T. (1940). Marietta Railroad Depot in Marietta, Georgia. The depot was built in 1864, destroyed by the Union troops later that year and was rebuilt in 1898 (Box 14, Folder 10) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/829b5mkn08-cor.
Chicago
Spencer, Thomas. “Marietta Railroad Depot in Marietta, Georgia. The Depot Was Built in 1864, Destroyed by the Union Troops Later That Year and Was Rebuilt in 1898.” Black-and-white photographs. Civil War Collection, 1940. Box 14, Folder 10. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/829b5mkn08-cor.