MLA
Sewell, D. B. 1908. Oxford College Library (Oxford, Ga.), OP 1908. https://digital.library.emory.edu/purl/6451g1jxtw-cor.
APA, 6th edition
Sewell, D. B. (OP 1908). (1908). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/6451g1jxtw-cor.
Chicago
“Sewell, D. B.” Black-and-white photographs. Early Emory College Photographs, 1908. OP 1908. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/6451g1jxtw-cor.