MLA
Campbell, B. S. An African American Man Sitting on a Barrel, Holding a Fishing Rod. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 61. https://digital.library.emory.edu/purl/460qrfj6s2-cor.
APA, 6th edition
Campbell, B. S. An African American man sitting on a barrel, holding a fishing rod (Box 61) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/460qrfj6s2-cor.
Chicago
Campbell, B. S. “An African American Man Sitting on a Barrel, Holding a Fishing Rod.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 61. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/460qrfj6s2-cor.