MLA
Seals, W. W. 1879. Oxford College Library (Oxford, Ga.), Box 2, Folder 15. https://digital.library.emory.edu/purl/941zcrjffq-cor.
APA, 6th edition
Seals, W. W. (Box 2, Folder 15). (1879). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/941zcrjffq-cor.
Chicago
“Seals, W. W.” Black-and-white photographs. Early Emory College Photographs, 1879. Box 2, Folder 15. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/941zcrjffq-cor.