MLA
Walker, N. P. 1897. Oxford College Library (Oxford, Ga.), Box 4, Folder 152. https://digital.library.emory.edu/purl/863fxpnwxm-cor.
APA, 6th edition
Walker, N. P. (Box 4, Folder 152). (1897). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/863fxpnwxm-cor.
Chicago
“Walker, N. P.” Black-and-white photographs. Early Emory College Photographs, 1897. Box 4, Folder 152. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/863fxpnwxm-cor.