MLA
Ridgeway, R.Q. 1899. Oxford College Library (Oxford, Ga.), OP 1899. https://digital.library.emory.edu/purl/81937pvnd2-cor.
APA, 6th edition
Ridgeway, R.Q. (OP 1899). (1899). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/81937pvnd2-cor.
Chicago
“Ridgeway, R.Q.” Black-and-white photographs. Early Emory College Photographs, 1899. OP 1899. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/81937pvnd2-cor.