MLA
Nat Curtright Sitting on a Bull, with Other Men Standing Nearby. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 12. https://digital.library.emory.edu/purl/774qjq2c33-cor.
APA, 6th edition
Nat Curtright sitting on a bull, with other men standing nearby (Box 12). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/774qjq2c33-cor.
Chicago
“Nat Curtright Sitting on a Bull, with Other Men Standing Nearby.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/774qjq2c33-cor.