MLA
An African American Man Wearing a Hat and Suspenders Sitting on a Chair Playing the Guitar. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 27. https://digital.library.emory.edu/purl/672b8gthzf-cor.
APA, 6th edition
An African American man wearing a hat and suspenders sitting on a chair playing the guitar (Box 27). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/672b8gthzf-cor.
Chicago
“An African American Man Wearing a Hat and Suspenders Sitting on a Chair Playing the Guitar.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 27. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/672b8gthzf-cor.