MLA
Brown, R. L. 1874. Oxford College Library (Oxford, Ga.), OP 1874. https://digital.library.emory.edu/purl/941zcrjffj-cor.
APA, 6th edition
Brown, R. L. (OP 1874). (1874). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/941zcrjffj-cor.
Chicago
“Brown, R. L.” Black-and-white photographs. Early Emory College Photographs, 1874. OP 1874. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/941zcrjffj-cor.