MLA
Unidentified Student. 1870. Oxford College Library (Oxford, Ga.), Box 1, Folder 17. https://digital.library.emory.edu/purl/320sqv9t60-cor.
APA, 6th edition
Unidentified student (Box 1, Folder 17). (1870). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/320sqv9t60-cor.
Chicago
“Unidentified Student.” Black-and-white photographs. Early Emory College Photographs, 1870. Box 1, Folder 17. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/320sqv9t60-cor.