MLA
Post, W. G. . 1891. Oxford College Library (Oxford, Ga.), Box 3, Folder 92. https://digital.library.emory.edu/purl/4644qrfk70-cor.
APA, 6th edition
Post, W. G. (Box 3, Folder 92). (1891). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/4644qrfk70-cor.
Chicago
“Post, W. G. .” Black-and-white photographs. Early Emory College Photographs, 1891. Box 3, Folder 92. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/4644qrfk70-cor.