MLA
Barrow, John Reuben. 1900. Oxford College Library (Oxford, Ga.), OP 1900. https://digital.library.emory.edu/purl/389280gc4p-cor.
APA, 6th edition
Barrow, John Reuben (OP 1900). (1900). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/389280gc4p-cor.
Chicago
“Barrow, John Reuben.” Black-and-white photographs. Early Emory College Photographs, 1900. OP 1900. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/389280gc4p-cor.