MLA
Dunbar, Rev. W. 1879. Oxford College Library (Oxford, Ga.), Box 2, Folder 7. https://digital.library.emory.edu/purl/931qfttfz1-cor.
APA, 6th edition
Dunbar, Rev. W. (Box 2, Folder 7). (1879). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/931qfttfz1-cor.
Chicago
“Dunbar, Rev. W.” Black-and-white photographs. Early Emory College Photographs, 1879. Box 2, Folder 7. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/931qfttfz1-cor.