MLA
Howren, H. D. 1880. Oxford College Library (Oxford, Ga.), Box 2, Folder 33. https://digital.library.emory.edu/purl/791sf7m1ck-cor.
APA, 6th edition
Howren, H. D. (Box 2, Folder 33). (1880). [Black-and-white photographs]. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/791sf7m1ck-cor.
Chicago
“Howren, H. D.” Black-and-white photographs. Early Emory College Photographs, 1880. Box 2, Folder 33. Oxford College Library (Oxford, Ga.). https://digital.library.emory.edu/purl/791sf7m1ck-cor.