MLA
Callahan, O. L. 1898. Oxford College Library (Oxford, Ga.), Box 5, Folder 8. https://digital.library.emory.edu/purl/1676t1g2jj-cor.
APA, 6th edition
Callahan, O. L. (Box 5, Folder 8). (1898). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/1676t1g2jj-cor.
Chicago
“Callahan, O. L.” Black-and-white photographs. Early Emory College Photographs, 1898. Box 5, Folder 8. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/1676t1g2jj-cor.