MLA
Man Playing a Guitar, with Two Men Standing next to Him. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 23. https://digital.library.emory.edu/purl/412z34tmsp-cor.
APA, 6th edition
Man playing a guitar, with two men standing next to him (Box 23). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/412z34tmsp-cor.
Chicago
“Man Playing a Guitar, with Two Men Standing next to Him.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 23. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/412z34tmsp-cor.