MLA
MacDonnell, George N. 1893. Oxford College Library (Oxford, Ga.), Box 4, Folder 26. https://digital.library.emory.edu/purl/221tdz09m3-cor.
APA, 6th edition
MacDonnell, George N. (Box 4, Folder 26). (1893). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/221tdz09m3-cor.
Chicago
“MacDonnell, George N.” Black-and-white photographs. Early Emory College Photographs, 1893. Box 4, Folder 26. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/221tdz09m3-cor.