MLA
Three Men and a Young African American Man at the Sign in Desk of a Restaurant, with a Picture of a Horse on the Wall. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 29. https://digital.library.emory.edu/purl/9010p2ngkd-cor.
APA, 6th edition
Three men and a young African American man at the sign in desk of a restaurant, with a picture of a horse on the wall (Box 29). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9010p2ngkd-cor.
Chicago
“Three Men and a Young African American Man at the Sign in Desk of a Restaurant, with a Picture of a Horse on the Wall.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 29. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9010p2ngkd-cor.