MLA
Spencer, Thomas. Cooper Iron Works (Also Known as Etowah Iron Works) in Bartow County, Georgia. 1927. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 14, Folder 6. https://digital.library.emory.edu/purl/0687h44k2v-cor.
APA, 6th edition
Spencer, T. (1927). Cooper Iron Works (also known as 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/0687h44k2v-cor.
Chicago
Spencer, Thomas. “Cooper Iron Works (Also Known as Etowah Iron Works) in Bartow County, Georgia.” Black-and-white photographs. Civil War Collection, 1927. Box 14, Folder 6. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0687h44k2v-cor.