MLA
Spencer, Thomas. Fort Macon in Carteret County, North Carolina. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15, Folder 5. https://digital.library.emory.edu/purl/781jh9w206-cor.
APA, 6th edition
Spencer, T. (1940). Fort Macon in Carteret County, North Carolina (Box 15, Folder 5) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/781jh9w206-cor.
Chicago
Spencer, Thomas. “Fort Macon in Carteret County, North Carolina.” Black-and-white photographs. Civil War Collection, 1940. Box 15, Folder 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/781jh9w206-cor.