MLA
Spencer, Thomas. View of the Etowah River near the Site of the Etowah Iron Works in Bartow County, Georgia. 1947. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 14, Folder 6. https://digital.library.emory.edu/purl/648ffbg8dv-cor.
APA, 6th edition
Spencer, T. (1947). View of the Etowah River near the site of the Etowah Iron Works in Bartow County, Georgia (Box 14, Folder 6) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/648ffbg8dv-cor.
Chicago
Spencer, Thomas. “View of the Etowah River near the Site of the Etowah Iron Works in Bartow County, Georgia.” Black-and-white photographs. Civil War Collection, 1947. Box 14, Folder 6. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/648ffbg8dv-cor.