MLA
Johnston, F. S. 1887. Oxford College Library (Oxford, Ga.), Box 2, Folder 128. https://digital.library.emory.edu/purl/351hhmgrpd-cor.
APA, 6th edition
Johnston, F. S. (Box 2, Folder 128). (1887). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/351hhmgrpd-cor.
Chicago
“Johnston, F. S.” Black-and-white photographs. Early Emory College Photographs, 1887. Box 2, Folder 128. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/351hhmgrpd-cor.