MLA
Young Man Standing on a Diving Board over a Lake, While Others Sit in a Boat. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5. https://digital.library.emory.edu/purl/286nzs7h89-cor.
APA, 6th edition
Young man standing on a diving board over a lake, while others sit in a boat (Box 5). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/286nzs7h89-cor.
Chicago
“Young Man Standing on a Diving Board over a Lake, While Others Sit in a Boat.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/286nzs7h89-cor.