MLA
Administrators - Man Sitting on Steps. 1908. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 7, Folder 5. https://digital.library.emory.edu/purl/40644j108q-cor.
APA, 6th edition
Administrators - Man sitting on Steps (Box 7, Folder 5). (1908). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/40644j108q-cor.
Chicago
“Administrators - Man Sitting on Steps.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1908. Box 7, Folder 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/40644j108q-cor.