MLA
Marshall, T. O. 1909. Oxford College Library (Oxford, Ga.), OP 1909. https://digital.library.emory.edu/purl/255z612knd-cor.
APA, 6th edition
Marshall, T. O. (OP 1909). (1909). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/255z612knd-cor.
Chicago
“Marshall, T. O.” Black-and-white photographs. Early Emory College Photographs, 1909. OP 1909. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/255z612knd-cor.